Active NPI 1053301440 Individual Practitioner Male Practitioner

Dr. Carl J Walker , MD

Urology • Spokane, WA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Carl Walker, MD is a certified Urology practicing in Spokane, WA. With approximately 35 years of clinical experience since graduating from University Of California, San Diego School Of Medicine in 1991, Dr. Walker delivers high-quality medical care to the local community at 1401 E TRENT AVE # 200.

Dr. Walker maintains professional affiliations with St Alexius Medical Center, Public Hospital District 1-A Of Whitman County and accepts Medicare assignment.

Frequently performed procedures and clinical services include 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, established patient outpatient office visit, new patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1401 E Trent Ave # 200

Spokane, WA 992022902

Telephone 5097473147

Associated Practice Facility / Clinic

🏢 Spokane Urology Pllc Facility NPI 1912015439

Medicare Profile & Education

Medical School

University Of California, San Diego School Of Medicine

Graduation Year

1991

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Urology in Spokane, WA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

35 Yrs +12.0 yrs vs City Avg

City Avg: 23.0 Yrs

State Avg: 25.2 Yrs

Regional Practice Density

21 Specialists

Practicing in Spokane, WA (351 Statewide)

Telehealth Adoption Rate

28.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

55.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Walker (35 Years) 35 Yrs

Spokane Specialty Average (23.0 Years) 23.0 Yrs

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
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	249	185	$45.00	$16.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	207	161	$242.00	$127.00
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	109	109	$348.00	$165.82
81002 Urinalysis, manual test	82	76	$33.00	$3.38
74420 Imaging of urinary tract	47	43	$54.00	$23.74
52000 Diagnostic exam of bladder and urethra using an endoscope	45	44	$513.00	$227.17
51798 Ultrasound measurement of bladder capacity after voiding	31	28	$50.00	$11.46
99213 Established patient office or other outpatient visit, typically 15 minutes	25	25	$167.00	$90.75
52000 Diagnostic exam of bladder and urethra using an endoscope	23	22	$300.00	$72.86
76872 Ultrasound scan of pelvic region through rectum	20	20	$243.82	$139.59
52356 Crushing of stone of ureter with insertion of stent using an endoscope	19	19	$930.53	$389.12
76872 Ultrasound scan of pelvic region through rectum	19	19	$160.00	$31.75
52332 Insertion of stent in urinary duct (ureter) using an endoscope	18	17	$411.11	$98.12
51700 Simple bladder irrigation and/or instillation	17	15	$127.51	$45.15
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	17	12	$388.00	$179.03
64561 Insertion of sacral nerve neurostimulator electrode array	16	14	$723.06	$426.49
52352 Removal or manipulation of stone in ureter or kidney using an endoscope	14	13	$776.79	$332.02
50590 Shock wave crushing of kidney stones	13	13	$1226.92	$597.36
64590 Insertion or replacement of peripheral, sacral, or gastric neurostimulator generator or receiver	11	11	$268.00	$144.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	266	203	$242.00	$129.14
51798 Ultrasound measurement of bladder capacity after voiding	161	111	$50.00	$11.06
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	134	134	$348.00	$166.10
52000 Diagnostic exam of bladder and urethra using an endoscope	116	105	$513.00	$201.68
81002 Urinalysis, manual test	92	81	$33.00	$3.38
52442 Insertion of implant in urethra within prostate gland using an endoscope, each additional implant	77	16	$1696.10	$880.70
76872 Ultrasound scan of pelvic region through rectum	72	66	$243.82	$94.42
51728 Complex measurement of pressure of urine flow in bladder with voiding pressure studies	49	49	$667.00	$378.08
51741 Electronic assessment of bladder emptying	49	49	$189.00	$7.12
51700 Simple bladder irrigation and/or instillation	48	36	$127.51	$48.16
J1580 Injection, garamycin, gentamicin, up to 80 mg	48	23	$5.16	$2.66
99213 Established patient office or other outpatient visit, typically 15 minutes	42	41	$167.00	$88.87
74420 Imaging of urinary tract	30	27	$54.00	$23.70
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	28	27	$88.00	$14.11
55700 Biopsy of prostate gland	27	27	$618.00	$235.76
0421T Waterjet destruction of prostrate accessed through the urethra	25	25	$1800.00	$712.15
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	23	20	$388.00	$181.20
76000 Imaging guidance for procedure, 60 minutes or less	22	20	$72.00	$15.46
64590 Insertion or replacement of peripheral, sacral, or gastric neurostimulator generator or receiver	20	20	$268.00	$89.14
64561 Insertion of sacral nerve neurostimulator electrode array	20	19	$741.92	$437.17
64581 Incision to insert sacral nerve neurostimulator electrodes	18	18	$1092.00	$649.39
52332 Insertion of stent in urinary duct (ureter) using an endoscope	17	16	$400.00	$101.43
52441 Insertion of implant in urethra within prostate gland using an endoscope, 1 implant	16	16	$2323.82	$1271.46
50590 Shock wave crushing of kidney stones	16	16	$1100.00	$570.61
36415 Insertion of needle into vein for collection of blood sample	14	14	$21.00	$7.28
52356 Crushing of stone of ureter with insertion of stent using an endoscope	13	13	$882.69	$376.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	186	144	$242.00	$126.70
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	126	126	$348.00	$164.63
81002 Urinalysis, manual test	117	97	$33.00	$3.45
51798 Ultrasound measurement of bladder capacity after voiding	112	86	$50.00	$10.68
52000 Diagnostic exam of bladder and urethra using an endoscope	108	99	$513.00	$228.26
99213 Established patient office or other outpatient visit, typically 15 minutes	104	86	$167.00	$91.34
52442 Insertion of implant in urethra within prostate gland using an endoscope, each additional implant	75	15	$1696.10	$938.27
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	57	57	$243.00	$112.68
76872 Ultrasound scan of pelvic region through rectum	33	33	$243.82	$39.19
99442 Telephone medical discussion with physician, 11-20 minutes	31	31	$126.00	$90.54
74420 Imaging of urinary tract	29	26	$54.00	$23.72
99441 Telephone medical discussion with physician, 5-10 minutes	28	27	$76.00	$56.41
51702 Simple insertion of temporary bladder tube	25	15	$255.00	$63.47
50590 Shock wave crushing of kidney stones	22	21	$1125.00	$515.04
51728 Complex measurement of pressure of urine flow in bladder with voiding pressure studies	21	21	$667.00	$372.74
51741 Electronic assessment of bladder emptying	21	21	$189.00	$6.94
36415 Insertion of needle into vein for collection of blood sample	20	15	$21.00	$2.96
64561 Insertion of sacral nerve neurostimulator electrode array	19	19	$754.50	$428.95
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	19	16	$388.00	$180.41
52310 Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope	18	15	$492.12	$328.64
52441 Insertion of implant in urethra within prostate gland using an endoscope, 1 implant	15	15	$2323.82	$1360.74
52356 Crushing of stone of ureter with insertion of stent using an endoscope	15	15	$878.33	$378.05
51700 Simple bladder irrigation and/or instillation	14	14	$127.51	$41.89
55700 Biopsy of prostate gland	13	13	$618.00	$227.02
G0103 Prostate cancer screening; prostate specific antigen test (psa)	12	12	$75.00	$19.10
52332 Insertion of stent in urinary duct (ureter) using an endoscope	12	12	$416.67	$107.71
76000 Imaging guidance for procedure, 60 minutes or less	12	12	$72.00	$15.11
64581 Incision to insert sacral nerve neurostimulator electrodes	11	11	$1092.00	$633.09

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
51798 Ultrasound measurement of bladder capacity after voiding	179	152	$40.28	$11.10
99213 Established patient office or other outpatient visit, typically 15 minutes	151	130	$171.37	$94.49
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	148	148	$242.88	$113.21
81002 Urinalysis, manual test	110	92	$33.00	$3.48
52000 Diagnostic exam of bladder and urethra using an endoscope	82	79	$505.15	$224.40
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	82	71	$206.15	$135.85
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	75	75	$328.99	$176.24
76872 Ultrasound scan of pelvic region through rectum	31	31	$263.40	$62.94
51702 Simple insertion of temporary bladder tube	19	16	$240.00	$66.11
51741 Electronic assessment of bladder emptying	18	18	$180.72	$7.09
51728 Complex measurement of pressure of urine flow in bladder with voiding pressure studies	18	18	$680.22	$374.95
51700 Simple bladder irrigation and/or instillation	16	15	$186.09	$61.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
51798 Ultrasound measurement of bladder capacity after voiding	227	162	$35.00	$11.32
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	166	100	$200.00	$116.02
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	157	157	$325.00	$173.89
99213 Established patient office or other outpatient visit, typically 15 minutes	136	94	$175.00	$79.62
52000 Diagnostic exam of bladder and urethra using an endoscope	68	61	$485.00	$225.56
52442 Insertion of implant in urethra within prostate gland using an endoscope, each additional implant	61	12	$2445.00	$1073.59
51700 Simple bladder irrigation and/or instillation	36	28	$190.00	$54.58
76872 Ultrasound scan of pelvic region through rectum	29	27	$345.00	$153.46
52441 Insertion of implant in urethra within prostate gland using an endoscope, 1 implant	13	12	$3260.00	$1469.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
51798 Ultrasound measurement of bladder capacity after voiding	151	115	$65.92	$13.91
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	122	122	$276.11	$171.75
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	118	83	$171.80	$114.23
99213 Established patient office or other outpatient visit, typically 15 minutes	102	75	$138.88	$78.15
81003 Automated urinalysis test	66	55	$21.00	$2.44
52000 Diagnostic exam of bladder and urethra using an endoscope	58	55	$399.78	$198.37
52442 Insertion of implant in urethra within prostate gland using an endoscope, each additional implant	46	11	$2013.85	$1054.60
51700 Simple bladder irrigation and/or instillation	33	21	$176.46	$59.52
52441 Insertion of implant in urethra within prostate gland using an endoscope, 1 implant	11	11	$2722.28	$1390.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
81003 Automated urinalysis test	157	95	$21.00	$2.71
51798 Ultrasound measurement of bladder capacity after voiding	129	92	$142.06	$16.76
99213 Established patient office or other outpatient visit, typically 15 minutes	113	87	$118.62	$74.51
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	95	95	$218.74	$168.93
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	91	72	$139.76	$111.43
51700 Simple bladder irrigation and/or instillation	53	11	$176.04	$74.59
52000 Diagnostic exam of bladder and urethra using an endoscope	32	29	$337.44	$170.53
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	17	13	$200.00	$150.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
81003 Automated urinalysis test	168	112	$21.00	$3.02
51798 Ultrasound measurement of bladder capacity after voiding	137	101	$146.35	$20.65
99213 Established patient office or other outpatient visit, typically 15 minutes	117	86	$98.85	$75.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	67	54	$140.00	$110.02
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	53	53	$220.00	$168.60
52000 Diagnostic exam of bladder and urethra using an endoscope	40	40	$350.00	$172.91
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	24	21	$75.00	$45.33
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	16	15	$265.00	$206.38
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	15	15	$265.00	$211.55
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$195.71	$111.40

Medical Specialties & State Licenses

CMS Verified: 2026-07-01

Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

State License WA MD61157938

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.

Urology

NUCC Taxonomy Code: 208800000X

State License IN 01046851A

Urology

NUCC Taxonomy Code: 208800000X

State License ID M-15503

Urology

NUCC Taxonomy Code: 208800000X

State License CA G74666

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

200152410 (IN)

Commercial Insurance / Payer ID Npi

1053301440 (CA)

Hospital & Practice Group Affiliations

Public Hospital District 1-A Of Whitman County

835 Se Bishop Blvd, Pullman, WA 991635512

Phone: 5093322541

St Alexius Medical Center

900 E Broadway Ave, Bismarck, ND 585014520

Phone: 7015307000

Secondary Practice Locations

1641 E Polston Ave Ste 102

Post Falls, ID 838547852

Phone: 2087552804

3815 N Schreiber Way Unit 101

Coeur D Alene, ID 838158434

Phone: 2087552804

Practice Associates & Co-Workers

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

21 Associated Practitioners

Susan Cain , ARNP

Nurse Practitioner

NPI 1033227863

Advanced Registered Nurse Practitioner

Anna Schweiger

Physician Assistant

NPI 1033992672

Dr. Evan Carlos , MD

Urology

NPI 1063807477

Doctor of Medicine (M.D.)

Dr. Duncan Sloan , MD

Urology

NPI 1124482385

Doctor of Medicine (M.D.)

Dr. Thomas Fairchild , MD

Urology

NPI 1154439735

Doctor of Medicine (M.D.)

Dr. Bryan Voelzke , MD

Urology

NPI 1245355163

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location October 14, 2021

Registered at 1401 E TRENT AVE # 200, SPOKANE, WA 992022902 (Tel: 5097473147)

📍

Updated Business Mailing Address October 14, 2021

Registered at 1401 E TRENT AVE # 200, SPOKANE, WA 992022902 (Tel: 5097473147)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 14, 2021

Urology (License #01046851A in IN)

✅

NPI Profile Active March 16, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location March 16, 2015

Registered at 1820 FULLERTON AVE, #260, CORONA, CA 928813101 (Tel: 9517352700)

📍

Updated Business Mailing Address March 16, 2015

Registered at 1820 FULLERTON AVE, #260, CORONA, CA 928813101 (Tel: 9517352700)

👤

Provider Name / Credentials Updated March 16, 2015

Recorded as CARL WALKER, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 16, 2015

Urology (License #G74666 in CA)

🟢

Initial NPI Registration & Enumeration October 26, 2005

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: 1053301440

Entity Type:

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

Enumeration Date: October 26, 2005

Last Update: July 01, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1401 E Trent Ave # 200

Spokane, WA 992022902

Phone: 5097473147

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.