Active NPI 1619975182 Individual Practitioner Male Practitioner

Dr. Johnny A. Chang , MD

Urology • Middletown, CT

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Johnny Chang, MD is a certified Urology practicing in Middletown, CT. With approximately 29 years of clinical experience since graduating from Un Of California, Irvine, College Of Medicine in 1997, Dr. Chang delivers high-quality medical care to the local community at 410 SAYBROOK RD.

Dr. Chang is affiliated with Mhs Primary Care, Inc. and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, diagnostic exam of bladder and urethra using an endoscope, 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

410 Saybrook Rd

Middletown, CT 064574777

Telephone 8603582270

Fax 8603582275

Associated Practice Facility / Clinic

🏢 Middlesex Endoscopy Center Llc Facility NPI 1972522985

Medicare Profile & Education

Medical School

Un Of California, Irvine, College Of Medicine

Graduation Year

1997

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Urology in Middletown, CT

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

29 Yrs +6.5 yrs vs City Avg

City Avg: 22.5 Yrs

State Avg: 23.2 Yrs

Regional Practice Density

8 Specialists

Practicing in Middletown, CT (196 Statewide)

Telehealth Adoption Rate

75.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

85.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Chang (29 Years) 29 Yrs

Middletown Specialty Average (22.5 Years) 22.5 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	352	292	$182.39	$99.82
99213 Established patient office or other outpatient visit, typically 15 minutes	318	289	$119.23	$67.78
52000 Diagnostic exam of bladder and urethra using an endoscope	70	53	$469.00	$81.29
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	70	70	$304.19	$137.47
74420 Imaging of urinary tract	35	26	$238.00	$24.72
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	25	25	$118.00	$30.57
55700 Biopsy of prostate gland	25	25	$613.90	$134.22
52332 Insertion of stent in urinary duct (ureter) using an endoscope	22	18	$2179.49	$125.92
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	21	21	$178.60	$84.48
51700 Simple bladder irrigation and/or instillation	18	15	$377.35	$30.89
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	13	13	$425.90	$134.28
52356 Crushing of stone of ureter with insertion of stent using an endoscope	13	12	$4544.25	$473.77
52310 Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope	13	13	$1278.75	$155.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	413	356	$120.94	$69.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	378	283	$182.35	$102.39
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	100	100	$307.15	$140.30
52000 Diagnostic exam of bladder and urethra using an endoscope	83	70	$469.00	$84.04
51720 Instillation of anti-cancer drug into bladder	42	12	$267.50	$43.11
74420 Imaging of urinary tract	35	25	$238.00	$25.55
55700 Biopsy of prostate gland	21	20	$613.90	$135.61
52332 Insertion of stent in urinary duct (ureter) using an endoscope	20	15	$2205.64	$137.85
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$178.60	$87.27
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	18	18	$118.00	$31.87
50590 Shock wave crushing of kidney stones	18	15	$4325.94	$704.37
52310 Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope	16	16	$1278.75	$157.89
52356 Crushing of stone of ureter with insertion of stent using an endoscope	15	15	$4617.37	$488.27
51700 Simple bladder irrigation and/or instillation	12	12	$377.35	$31.62
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	11	$425.90	$136.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	455	389	$118.05	$71.07
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	416	320	$183.21	$104.16
52000 Diagnostic exam of bladder and urethra using an endoscope	85	74	$469.00	$85.39
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	73	73	$304.08	$143.98
74420 Imaging of urinary tract	32	28	$238.00	$26.29
52332 Insertion of stent in urinary duct (ureter) using an endoscope	26	22	$2102.37	$116.51
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	25	25	$186.13	$88.81
52310 Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope	18	18	$1278.75	$159.62
55700 Biopsy of prostate gland	16	16	$613.90	$137.80
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	15	15	$118.00	$32.81
52352 Removal or manipulation of stone in ureter or kidney using an endoscope	14	14	$3178.24	$363.04
50590 Shock wave crushing of kidney stones	13	13	$4278.41	$707.67

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	480	375	$183.81	$106.33
99213 Established patient office or other outpatient visit, typically 15 minutes	444	362	$118.47	$72.15
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	103	103	$303.33	$145.79
52000 Diagnostic exam of bladder and urethra using an endoscope	87	76	$469.00	$84.52
55700 Biopsy of prostate gland	30	29	$613.90	$139.47
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	30	29	$117.81	$33.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	26	26	$178.60	$89.39
74420 Imaging of urinary tract	23	17	$237.81	$26.65
50590 Shock wave crushing of kidney stones	19	18	$4098.26	$682.61
52332 Insertion of stent in urinary duct (ureter) using an endoscope	18	16	$2024.50	$136.24
52648 Laser vaporization of prostate including control of bleeding using an endoscope	11	11	$6243.45	$747.96
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$425.90	$144.35

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	421	370	$119.84	$55.46
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	368	304	$183.80	$85.33
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	83	83	$301.50	$140.50
52000 Diagnostic exam of bladder and urethra using an endoscope	64	57	$469.00	$88.02
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$178.60	$82.19
74420 Imaging of urinary tract	26	22	$237.60	$27.52
55700 Biopsy of prostate gland	24	24	$613.90	$144.49
76872 Ultrasound scan of pelvic region through rectum	19	19	$97.35	$36.18
52310 Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope	15	15	$1278.75	$156.17
52332 Insertion of stent in urinary duct (ureter) using an endoscope	15	14	$2109.75	$159.82
50590 Shock wave crushing of kidney stones	15	15	$4449.54	$759.77
99441 Telephone medical discussion with physician, 5-10 minutes	13	13	$38.31	$27.76
52356 Crushing of stone of ureter with insertion of stent using an endoscope	11	11	$4259.34	$480.48

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	642	513	$179.84	$83.79
99213 Established patient office or other outpatient visit, typically 15 minutes	350	312	$117.50	$54.53
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	82	82	$297.78	$138.20
52000 Diagnostic exam of bladder and urethra using an endoscope	81	76	$460.24	$87.79
74420 Imaging of urinary tract	44	32	$233.39	$27.48
52332 Insertion of stent in urinary duct (ureter) using an endoscope	32	22	$2119.67	$164.99
55700 Biopsy of prostate gland	28	26	$602.11	$143.46
76872 Ultrasound scan of pelvic region through rectum	28	26	$88.68	$35.51
50590 Shock wave crushing of kidney stones	27	26	$4984.12	$861.83
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$174.36	$81.80
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	22	22	$114.65	$34.22
52310 Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope	18	18	$1257.95	$166.93
99221 Initial hospital inpatient care per day, typically 30 minutes	12	12	$322.38	$108.63
52356 Crushing of stone of ureter with insertion of stent using an endoscope	11	11	$3992.82	$458.44
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	11	11	$252.77	$118.56

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	674	553	$177.02	$82.62
99213 Established patient office or other outpatient visit, typically 15 minutes	375	330	$113.48	$54.45
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	105	105	$292.10	$136.44
52000 Diagnostic exam of bladder and urethra using an endoscope	92	79	$449.15	$89.25
74420 Imaging of urinary tract	39	31	$226.83	$18.59
50590 Shock wave crushing of kidney stones	29	27	$4218.38	$735.47
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	28	28	$171.32	$81.66
52310 Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope	24	23	$1223.44	$165.55
52332 Insertion of stent in urinary duct (ureter) using an endoscope	23	20	$2112.23	$166.63
76000 Imaging guidance for procedure, 60 minutes or less	21	19	$146.33	$9.40
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	19	19	$112.59	$34.23
76872 Ultrasound scan of pelvic region through rectum	19	19	$93.22	$35.69
55700 Biopsy of prostate gland	19	19	$588.11	$142.69
99221 Initial hospital inpatient care per day, typically 30 minutes	17	17	$298.80	$107.92
52356 Crushing of stone of ureter with insertion of stent using an endoscope	13	12	$3892.72	$454.85

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	749	592	$250.46	$82.84
99213 Established patient office or other outpatient visit, typically 15 minutes	491	424	$157.86	$53.85
52000 Diagnostic exam of bladder and urethra using an endoscope	136	113	$438.34	$111.39
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	128	128	$310.56	$137.11
74420 Imaging of urinary tract	55	37	$221.76	$18.57
50590 Shock wave crushing of kidney stones	47	40	$4015.50	$704.39
52332 Insertion of stent in urinary duct (ureter) using an endoscope	43	29	$1976.14	$138.18
52310 Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope	28	25	$1190.58	$165.37
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	25	25	$191.97	$79.04
76000 Imaging guidance for procedure, 60 minutes or less	23	20	$143.18	$9.39
76872 Ultrasound scan of pelvic region through rectum	23	21	$90.90	$35.30
55700 Biopsy of prostate gland	23	21	$573.72	$142.55
99221 Initial hospital inpatient care per day, typically 30 minutes	21	21	$291.53	$107.69
52352 Removal or manipulation of stone in ureter or kidney using an endoscope	20	19	$2934.99	$319.29
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	20	18	$109.92	$34.20
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	11	11	$232.13	$76.26

Medical Specialties & State Licenses

CMS Verified: 2026-05-05

Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

State License CT 041177

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.

Specialist

NUCC Taxonomy Code: 174400000X

State License CT 041177

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

1411777 (CT)

Commercial Insurance / Payer ID Aetna Provider Id

3159551 (CT)

Commercial Insurance / Payer ID Connecticare Provider Id

041177 (CT)

Commercial Insurance / Payer ID Healthnet Provider Id

2V4421 (CT)

Commercial Insurance / Payer ID Blue Care Family Plan Id

00141177700 (CT)

Commercial Insurance / Payer ID Blue Shield Provider Id

010041177CT01 (CT)

Commercial Insurance / Payer ID United Healthcare Id

0000231610801 (CT)

Commercial Insurance / Payer ID Oxford Provider Id

P2882366 (CT)

Hospital & Practice Group Affiliations

Mhs Primary Care, Inc.

410 Saybrook Rd, Middletown, CT 064574777

Phone: 8603582270

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Jonathan Li , MD

Urology

NPI 1619436169

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location May 05, 2026

Registered at 410 SAYBROOK RD, MIDDLETOWN, CT 064574777 (Tel: 8603582270)

📍

Updated Business Mailing Address May 05, 2026

Registered at 28 CRESCENT ST, MIDDLETOWN, CT 064573650 (Tel: 8603586000)

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 538 LITCHFIELD ST, SUITE 102, TORRINGTON, CT 067906669 (Tel: 8604968990)

📍

Updated Business Mailing Address July 08, 2007

Registered at 538 LITCHFIELD ST, SUITE 102, TORRINGTON, CT 067906669 (Tel: 8604968990)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as JOHNNY CHANG, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Specialist (License #041177 in CT)

🟢

Initial NPI Registration & Enumeration July 08, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Johnny Chang. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1619975182

Entity Type:

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

Enumeration Date: July 08, 2005

Last Update: May 05, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

28 Crescent St

Middletown, CT 064573650

Phone: 8603586000

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.