Deactivated NPI 1063472470 Deactivated / Inactive NPI Male Practitioner

Dr. John G Giannakis , MD

Urology • Shenandoah, TX

⚠️

Notice of NPI Deactivation & Inactive Practice Status

According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. John Giannakis has officially deactivated this NPI record and ceased active healthcare practice.

Registration / Start Date March 28, 2006

NPI Deactivation Date June 19, 2024

Total Practice Duration ~18 Years of Practice (2006 – 2024)

Professional Overview & Biography Verified Profile Summary

Dr. John Giannakis, MD was a registered Urology practicing in Shenandoah, TX. Throughout an active medical career spanning 18 years, Dr. Giannakis provided care at the practice location at 135 VISION PARK BLVD until profile deactivation on 2024-06-19.

Historical Medicare Part B clinical services included detection test for organism, detection test for candida species (yeast), amplified probe technique, established patient outpatient office visit. Public procedure reimbursement records and service volume details are provided below for historical transparency.

Practice Location & Contact Primary Location

Practice Address

135 Vision Park Blvd

Shenandoah, TX 773843001

Telephone 2814043000

Fax 9362735546

Associated Practice Facility / Clinic

🏢 Northwoods Urology Association Facility NPI 1396836359

Specialty Benchmarks & Practice Insights

Comparative analytics for Urology in Shenandoah, TX

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 14.0 Yrs

State Avg: 25.2 Yrs

Regional Practice Density

7 Specialists

Practicing in Shenandoah, TX (1027 Statewide)

Telehealth Adoption Rate

14.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

56.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
87798 Detection test for organism	1,222	78	$71.00	$34.39
87481 Detection test for candida species (yeast), amplified probe technique	470	78	$71.00	$34.39
99213 Established patient office or other outpatient visit, typically 15 minutes	410	269	$176.48	$86.06
81001 Manual urinalysis test with examination using microscope, automated	346	304	$18.00	$3.10
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	206	195	$251.00	$121.58
36415 Insertion of needle into vein for collection of blood sample	195	189	$12.00	$8.65
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	105	102	$32.08	$15.59
87640 Detection test by nucleic acid for staphylococcus aureus (bacteria), amplified probe technique	94	78	$72.00	$34.39
87651 Detection test for Strep (Streptococcus, group A)	94	78	$71.00	$34.39
87653 Detection test by nucleic acid for strep (streptococcus, group b), amplified probe technique	94	78	$71.00	$34.39
87641 Detection test by nucleic acid for staphylococcus aureus, methicillin resistant (mrsa bacteria), amplified probe technique	94	78	$72.00	$34.39
51798 Ultrasound measurement of bladder capacity after voiding	72	66	$20.00	$10.44
64566 Implantation of lower leg neurostimulator electrode, accessed through the skin	70	11	$236.00	$108.38
81003 Automated urinalysis test	60	57	$14.00	$2.17
51705 Removal of skin suture with change of bladder tube	37	18	$190.00	$91.49
52000 Diagnostic exam of bladder and urethra using an endoscope	26	25	$483.00	$218.84
51728 Complex measurement of pressure of urine flow in bladder with voiding pressure studies	25	25	$734.00	$337.81
51600 Injection procedure for X-ray imaging of the bladder or during voiding	25	25	$432.00	$97.04
51784 Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings	25	25	$126.00	$30.19
74455 Review by radiologist of urinary bladder and urethra images with contrast and after passing urine	25	25	$211.00	$96.09
51741 Electronic assessment of bladder emptying	22	22	$27.00	$6.73
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$218.00	$105.44
51700 Simple bladder irrigation and/or instillation	18	14	$151.00	$71.46
51702 Simple insertion of temporary bladder tube	17	12	$122.00	$58.25
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$326.00	$158.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
87798 Detection test for organism	6,047	309	$70.58	$34.15
87481 Detection test for candida species (yeast), amplified probe technique	2,323	309	$70.76	$34.25
81001 Manual urinalysis test with examination using microscope, automated	1,581	968	$17.99	$3.10
99213 Established patient office or other outpatient visit, typically 15 minutes	1,470	815	$176.49	$86.04
J9030 Bcg live intravesical instillation, 1 mg	1,350	13	$15.11	$2.84
87801 Detection test for multiple organisms	845	199	$139.50	$68.38
36415 Insertion of needle into vein for collection of blood sample	751	561	$12.00	$8.36
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	709	539	$250.38	$121.99
87641 Detection test by nucleic acid for staphylococcus aureus, methicillin resistant (mrsa bacteria), amplified probe technique	474	312	$71.39	$34.10
87640 Detection test by nucleic acid for staphylococcus aureus (bacteria), amplified probe technique	470	312	$72.00	$34.32
87651 Detection test for Strep (Streptococcus, group A)	467	310	$71.00	$34.32
87653 Detection test by nucleic acid for strep (streptococcus, group b), amplified probe technique	466	309	$71.00	$34.32
51798 Ultrasound measurement of bladder capacity after voiding	387	286	$19.98	$9.98
87500 Detection test by nucleic acid for vancomycin resistance strep (vre), amplified probe technique	285	201	$71.00	$34.27
J9217 Leuprolide acetate (for depot suspension), 7.5 mg	183	28	$695.00	$169.10
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	141	45	$28.00	$13.53
J0696 Injection, ceftriaxone sodium, per 250 mg	135	33	$15.00	$0.51
81003 Automated urinalysis test	112	104	$14.00	$2.20
51705 Removal of skin suture with change of bladder tube	106	23	$190.00	$92.07
52000 Diagnostic exam of bladder and urethra using an endoscope	105	88	$477.54	$229.24
51728 Complex measurement of pressure of urine flow in bladder with voiding pressure studies	95	91	$729.41	$348.28
51784 Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings	89	87	$126.64	$30.62
51600 Injection procedure for X-ray imaging of the bladder or during voiding	84	80	$428.93	$101.94
51700 Simple bladder irrigation and/or instillation	84	59	$151.00	$71.02
74455 Review by radiologist of urinary bladder and urethra images with contrast and after passing urine	83	79	$209.38	$99.91
51741 Electronic assessment of bladder emptying	80	78	$26.85	$6.70
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	80	80	$326.00	$159.78
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	74	74	$218.00	$106.15
51702 Simple insertion of temporary bladder tube	71	38	$122.00	$58.73
64566 Implantation of lower leg neurostimulator electrode, accessed through the skin	69	12	$236.00	$111.71
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	65	62	$259.04	$124.95
51720 Instillation of anti-cancer drug into bladder	61	14	$171.00	$83.78
96402 Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle	59	31	$65.00	$32.19
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	53	39	$138.00	$76.10
76872 Ultrasound scan of pelvic region through rectum	32	32	$405.00	$130.83
50590 Shock wave crushing of kidney stones	27	27	$1454.00	$554.01
55700 Biopsy of prostate gland	24	24	$478.00	$230.89
52601 Electro-removal of prostate through bladder canal (urethra) with control of bleeding using an endoscope	18	18	$1408.00	$692.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
87798 Detection test for organism	8,436	428	$71.00	$34.66
J9030 Bcg live intravesical instillation, 1 mg	3,350	21	$14.15	$2.81
87481 Detection test for candida species (yeast), amplified probe technique	3,264	428	$71.00	$34.66
87801 Detection test for multiple organisms	1,960	428	$140.50	$69.35
81001 Manual urinalysis test with examination using microscope, automated	1,897	1,038	$17.42	$3.12
99213 Established patient office or other outpatient visit, typically 15 minutes	1,674	859	$174.60	$87.73
36415 Insertion of needle into vein for collection of blood sample	778	552	$11.68	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	746	547	$248.13	$124.24
87641 Detection test by nucleic acid for staphylococcus aureus, methicillin resistant (mrsa bacteria), amplified probe technique	660	430	$72.00	$34.67
87640 Detection test by nucleic acid for staphylococcus aureus (bacteria), amplified probe technique	660	430	$72.00	$34.67
87500 Detection test by nucleic acid for vancomycin resistance strep (vre), amplified probe technique	660	430	$71.00	$34.67
87651 Detection test for Strep (Streptococcus, group A)	656	428	$71.00	$34.66
87653 Detection test by nucleic acid for strep (streptococcus, group b), amplified probe technique	656	428	$71.00	$34.66
51798 Ultrasound measurement of bladder capacity after voiding	360	277	$20.63	$10.06
J0696 Injection, ceftriaxone sodium, per 250 mg	207	47	$15.58	$0.49
52000 Diagnostic exam of bladder and urethra using an endoscope	149	121	$470.47	$238.67
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	140	55	$28.94	$13.97
J9217 Leuprolide acetate (for depot suspension), 7.5 mg	125	22	$695.00	$173.11
51720 Instillation of anti-cancer drug into bladder	116	21	$170.33	$85.32
51705 Removal of skin suture with change of bladder tube	115	22	$189.48	$91.12
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	102	102	$325.90	$162.35
51728 Complex measurement of pressure of urine flow in bladder with voiding pressure studies	99	98	$716.39	$360.38
81003 Automated urinalysis test	96	91	$13.64	$2.23
51784 Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings	91	91	$128.32	$31.33
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	76	46	$137.57	$68.72
51700 Simple bladder irrigation and/or instillation	75	58	$152.38	$59.51
51741 Electronic assessment of bladder emptying	75	75	$27.24	$6.70
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	74	74	$217.46	$106.32
51702 Simple insertion of temporary bladder tube	71	46	$122.21	$60.81
51600 Injection procedure for X-ray imaging of the bladder or during voiding	49	48	$423.18	$110.04
74455 Review by radiologist of urinary bladder and urethra images with contrast and after passing urine	48	47	$203.75	$105.21
76872 Ultrasound scan of pelvic region through rectum	47	47	$375.41	$136.85
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	44	40	$107.73	$54.34
96402 Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle	44	24	$64.77	$31.26
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	43	41	$258.67	$129.99
50590 Shock wave crushing of kidney stones	34	33	$1473.78	$563.83
55700 Biopsy of prostate gland	32	32	$479.50	$238.25
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	30	28	$385.93	$191.36
51701 Insertion of temporary bladder tube	18	14	$87.89	$43.43
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	17	17	$428.53	$214.81
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	16	16	$348.75	$175.53
52601 Electro-removal of prostate through bladder canal (urethra) with control of bleeding using an endoscope	11	11	$1414.09	$701.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
87798 Detection test for organism	4,633	278	$71.00	$35.09
J9030 Bcg live intravesical instillation, 1 mg	3,300	16	$8.16	$2.85
87481 Detection test for candida species (yeast), amplified probe technique	1,729	278	$71.00	$35.09
81001 Manual urinalysis test with examination using microscope, automated	1,603	907	$9.00	$3.13
99213 Established patient office or other outpatient visit, typically 15 minutes	1,514	788	$144.80	$89.14
87801 Detection test for multiple organisms	1,074	278	$140.50	$70.04
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	711	520	$209.25	$126.29
36415 Insertion of needle into vein for collection of blood sample	683	499	$6.00	$2.98
87500 Detection test by nucleic acid for vancomycin resistance strep (vre), amplified probe technique	359	279	$71.00	$35.01
87641 Detection test by nucleic acid for staphylococcus aureus, methicillin resistant (mrsa bacteria), amplified probe technique	359	279	$72.00	$35.09
87640 Detection test by nucleic acid for staphylococcus aureus (bacteria), amplified probe technique	359	279	$72.00	$35.09
87653 Detection test by nucleic acid for strep (streptococcus, group b), amplified probe technique	357	277	$71.00	$35.09
51798 Ultrasound measurement of bladder capacity after voiding	341	242	$29.96	$9.96
87651 Detection test for Strep (Streptococcus, group A)	299	233	$71.00	$35.09
J0696 Injection, ceftriaxone sodium, per 250 mg	258	52	$15.00	$0.54
81003 Automated urinalysis test	247	229	$7.00	$2.23
J9217 Leuprolide acetate (for depot suspension), 7.5 mg	204	26	$695.00	$176.88
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	198	62	$40.00	$13.93
52000 Diagnostic exam of bladder and urethra using an endoscope	162	137	$324.21	$229.17
51728 Complex measurement of pressure of urine flow in bladder with voiding pressure studies	133	127	$625.00	$363.27
51784 Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings	123	123	$140.00	$32.24
51600 Injection procedure for X-ray imaging of the bladder or during voiding	113	110	$360.00	$108.45
74455 Review by radiologist of urinary bladder and urethra images with contrast and after passing urine	110	107	$153.00	$102.63
51720 Instillation of anti-cancer drug into bladder	108	16	$165.00	$87.94
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	103	103	$323.39	$163.90
51741 Electronic assessment of bladder emptying	100	97	$30.00	$6.76
51702 Simple insertion of temporary bladder tube	78	38	$125.00	$63.08
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	69	49	$145.00	$70.24
76872 Ultrasound scan of pelvic region through rectum	68	66	$190.00	$138.06
96402 Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle	63	28	$60.00	$31.15
51705 Removal of skin suture with change of bladder tube	57	13	$180.00	$91.98
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	54	47	$85.00	$53.27
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	53	53	$207.99	$110.14
51700 Simple bladder irrigation and/or instillation	50	35	$225.00	$74.27
55700 Biopsy of prostate gland	40	39	$490.00	$247.73
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	35	35	$270.00	$133.12
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	26	26	$405.00	$195.71
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	26	25	$279.41	$176.76
50590 Shock wave crushing of kidney stones	25	23	$1380.83	$575.28
52601 Electro-removal of prostate through bladder canal (urethra) with control of bleeding using an endoscope	13	13	$1475.00	$671.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
81001 Manual urinalysis test with examination using microscope, automated	1,377	875	$9.00	$3.14
99213 Established patient office or other outpatient visit, typically 15 minutes	1,369	775	$144.67	$73.45
36415 Insertion of needle into vein for collection of blood sample	725	543	$6.00	$2.97
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	544	443	$209.61	$106.73
51798 Ultrasound measurement of bladder capacity after voiding	350	250	$29.96	$9.86
J9217 Leuprolide acetate (for depot suspension), 7.5 mg	226	29	$695.00	$222.91
52000 Diagnostic exam of bladder and urethra using an endoscope	170	140	$325.00	$207.27
81003 Automated urinalysis test	170	161	$7.00	$2.24
J0696 Injection, ceftriaxone sodium, per 250 mg	168	41	$15.00	$0.57
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	156	83	$144.52	$71.90
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	140	40	$40.00	$13.89
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	105	105	$325.00	$160.74
51728 Complex measurement of pressure of urine flow in bladder with voiding pressure studies	59	58	$619.46	$345.61
96402 Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle	58	29	$60.00	$30.80
51784 Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings	57	57	$140.76	$33.35
51600 Injection procedure for X-ray imaging of the bladder or during voiding	55	55	$356.61	$101.68
74455 Review by radiologist of urinary bladder and urethra images with contrast and after passing urine	55	55	$151.60	$94.48
51741 Electronic assessment of bladder emptying	45	44	$29.67	$7.08
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	42	41	$210.00	$105.70
51702 Simple insertion of temporary bladder tube	40	25	$125.00	$60.08
76872 Ultrasound scan of pelvic region through rectum	38	38	$190.00	$140.58
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	37	37	$270.00	$136.64
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	37	27	$85.00	$44.66
51705 Removal of skin suture with change of bladder tube	37	12	$180.00	$93.82
99221 Initial hospital inpatient care per day, typically 30 minutes	36	35	$200.00	$98.26
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	33	31	$208.09	$104.13
55700 Biopsy of prostate gland	32	32	$490.00	$245.95
51700 Simple bladder irrigation and/or instillation	30	24	$166.33	$73.88
50590 Shock wave crushing of kidney stones	20	18	$1440.00	$582.82
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	19	19	$285.00	$143.51
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	19	19	$410.00	$204.17
52601 Electro-removal of prostate through bladder canal (urethra) with control of bleeding using an endoscope	12	12	$1475.00	$736.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
81001 Manual urinalysis test with examination using microscope, automated	1,427	879	$9.00	$3.43
99213 Established patient office or other outpatient visit, typically 15 minutes	1,262	741	$145.00	$72.14
36415 Insertion of needle into vein for collection of blood sample	734	547	$6.00	$2.92
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	711	528	$210.00	$105.22
51798 Ultrasound measurement of bladder capacity after voiding	373	271	$30.00	$12.05
J0696 Injection, ceftriaxone sodium, per 250 mg	260	55	$15.00	$0.56
81003 Automated urinalysis test	190	167	$7.00	$2.44
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	188	32	$40.00	$16.18
J9217 Leuprolide acetate (for depot suspension), 7.5 mg	184	23	$695.00	$225.13
52000 Diagnostic exam of bladder and urethra using an endoscope	166	137	$325.00	$182.84
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	137	137	$325.00	$159.51
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	104	58	$145.00	$70.06
51728 Complex measurement of pressure of urine flow in bladder with voiding pressure studies	59	56	$625.00	$325.67
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	59	59	$210.00	$105.27
51600 Injection procedure for X-ray imaging of the bladder or during voiding	54	51	$360.00	$96.39
51784 Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings	53	53	$140.00	$33.19
74455 Review by radiologist of urinary bladder and urethra images with contrast and after passing urine	53	50	$153.00	$86.55
51741 Electronic assessment of bladder emptying	53	52	$30.00	$7.05
76872 Ultrasound scan of pelvic region through rectum	48	48	$190.00	$123.41
99221 Initial hospital inpatient care per day, typically 30 minutes	47	45	$200.00	$99.72
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	45	42	$285.00	$139.60
55700 Biopsy of prostate gland	43	43	$490.00	$244.23
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	43	37	$85.00	$43.71
96402 Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle	43	23	$60.00	$29.70
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	38	37	$270.00	$134.87
51797 Insertion of device into abdomen with pressure and urine flow rate study	37	35	$225.00	$134.57
51702 Simple insertion of temporary bladder tube	37	23	$125.00	$60.19
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	29	29	$410.00	$201.96
51700 Simple bladder irrigation and/or instillation	27	21	$145.00	$71.16
50590 Shock wave crushing of kidney stones	26	24	$1440.00	$581.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
81001 Manual urinalysis test with examination using microscope, automated	1,162	743	$9.00	$3.81
99213 Established patient office or other outpatient visit, typically 15 minutes	951	574	$144.32	$70.28
36415 Insertion of needle into vein for collection of blood sample	707	524	$6.00	$2.93
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	700	516	$209.36	$103.48
51798 Ultrasound measurement of bladder capacity after voiding	354	245	$30.81	$14.89
J0696 Injection, ceftriaxone sodium, per 250 mg	201	38	$15.00	$0.61
J9217 Leuprolide acetate (for depot suspension), 7.5 mg	198	25	$695.00	$212.06
81003 Automated urinalysis test	179	158	$7.00	$2.71
52000 Diagnostic exam of bladder and urethra using an endoscope	146	124	$336.82	$158.68
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	111	111	$323.61	$157.07
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	100	74	$84.66	$42.10
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	90	18	$40.36	$19.60
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	70	44	$144.70	$71.06
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	64	61	$269.66	$133.99
51741 Electronic assessment of bladder emptying	52	52	$30.15	$7.62
51797 Insertion of device into abdomen with pressure and urine flow rate study	50	50	$223.08	$109.06
51600 Injection procedure for X-ray imaging of the bladder or during voiding	50	50	$358.08	$89.89
51784 Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings	48	48	$177.83	$33.54
96402 Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle	47	25	$60.23	$29.29
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	40	40	$209.65	$103.89
76872 Ultrasound scan of pelvic region through rectum	34	34	$187.41	$92.74
51700 Simple bladder irrigation and/or instillation	32	25	$146.41	$71.12
55700 Biopsy of prostate gland	30	30	$471.60	$241.57
51729 Complex measurement of pressure of urine flow in bladder with urethra pressure and voiding pressure studies	28	28	$663.14	$324.08
51728 Complex measurement of pressure of urine flow in bladder with voiding pressure studies	22	22	$625.00	$306.04
74455 Review by radiologist of urinary bladder and urethra images with contrast and after passing urine	21	21	$153.00	$77.99
50590 Shock wave crushing of kidney stones	17	17	$1433.12	$579.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
81001 Manual urinalysis test with examination using microscope, automated	1,418	860	$9.00	$4.24
99213 Established patient office or other outpatient visit, typically 15 minutes	964	572	$141.15	$69.68
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	741	546	$206.86	$102.69
36415 Insertion of needle into vein for collection of blood sample	698	483	$6.00	$2.93
51798 Ultrasound measurement of bladder capacity after voiding	226	175	$36.00	$17.98
J9217 Leuprolide acetate (for depot suspension), 7.5 mg	211	22	$695.00	$206.05
J0696 Injection, ceftriaxone sodium, per 250 mg	142	33	$15.00	$0.64
52000 Diagnostic exam of bladder and urethra using an endoscope	132	109	$394.00	$153.45
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	128	128	$319.00	$156.19
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	74	22	$48.00	$24.03
96402 Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle	54	22	$61.00	$30.00
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	50	50	$208.00	$103.59
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	49	41	$83.00	$41.43
51741 Electronic assessment of bladder emptying	43	40	$31.00	$7.74
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	38	37	$268.00	$132.64
51600 Injection procedure for X-ray imaging of the bladder or during voiding	38	38	$348.00	$88.84
51729 Complex measurement of pressure of urine flow in bladder with urethra pressure and voiding pressure studies	37	37	$646.00	$322.56
51784 Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings	35	35	$367.00	$33.11
51797 Insertion of device into abdomen with pressure and urine flow rate study	34	34	$213.00	$106.04
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	27	17	$142.00	$70.03
76872 Ultrasound scan of pelvic region through rectum	27	26	$179.00	$90.19
55700 Biopsy of prostate gland	26	26	$421.00	$236.70
50590 Shock wave crushing of kidney stones	26	24	$1401.00	$579.08
52601 Electro-removal of prostate through bladder canal (urethra) with control of bleeding using an endoscope	13	13	$1677.00	$832.58
51700 Simple bladder irrigation and/or instillation	13	13	$160.00	$69.17

Medical Specialties & State Licenses

Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

State License TX H1883

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

6 Associated Practitioners

Karen Mackenney , RN, FNP

Nurse Practitioner - Family

NPI 1003014366

Registered Nurse, Family Nurse Practitioner

Rebecca Turner , ACNP

Nurse Practitioner - Acute Care

NPI 1053401588

Dr. Paul Rizk , MD

Urology

NPI 1053816702

Doctor of Medicine (M.D.)

Dr. Ronald Henry , MD

Urology

NPI 1306806088

Doctor of Medicine (M.D.)

Dr. Zeeshan Danawala , MD

Urology

NPI 1609192558

Doctor of Medicine (M.D.)

Angelique Tijerina , PA

Physician Assistant

NPI 1669523619

Physician Assistant

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events

⚠️

NPI Profile Deactivated June 19, 2024

Record deactivated on June 19, 2024

✅

NPI Profile Active January 07, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location January 07, 2013

Registered at 135 VISION PARK BLVD, SHENANDOAH, TX 773843001 (Tel: 2814043000)

📍

Updated Business Mailing Address January 07, 2013

Registered at 135 VISION PARK BLVD, SHENANDOAH, TX 773843001 (Tel: 2814043000)

👤

Provider Name / Credentials Updated January 07, 2013

Recorded as JOHN GIANNAKIS, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 07, 2013

Urology (License #H1883 in TX)

🟢

Initial NPI Registration & Enumeration March 28, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1063472470

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: March 28, 2006

Last Update: January 07, 2013

Deactivation Date: June 19, 2024

Update or Correct Profile

Mailing Address

135 Vision Park Blvd

Shenandoah, TX 773843001

Phone: 2814043000

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.