Johnny A. Chang, M.D.
Urology Physician · Middletown, CT
Johnny A. Chang, M.D. is a urology physician with a practice address in Middletown, Connecticut, and NPI 1619975182, issued on Jul 8, 2005. Check the license (Connecticut 041177, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Johnny A. Chang
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 041177 CT
Self-reported in NPPES; status is on the state search - Practice location
- 410 Saybrook RD, Middletown, CT 06457
- Phone
- (860) 358-2270
- Enumerated
- Jul 8, 2005
- Record last updated
- May 5, 2026
- Fax
- (860) 358-2275
- Medicaid ID
- 1411777 CT
- Medicare enrollment
- Enrolled (PECOS I20110110000788); accepts Medicare assignment
- Medical or professional school
- Un Of California, Irvine, College Of Medicine, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest urology physician records → All 185 in Connecticut → Look up another NPI →
Also registered at 410 Saybrook RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Edmund Chung, MDGastroenterology Physician1306804323
- Carly Croteau, PT, DPTPhysical Therapist1205236247
Verify Johnny A. Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 041177Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.4 times the Medicare Part D claims of the average urology physician in 2024
5,935 Medicare Part D claims for 1,126 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 29 claims were for opioids.
Most prescribed
- Finasteride1,970 claims
- Tamsulosin Hcl1,240 claims
- Dutasteride781 claims
- Oxybutynin Chloride Er523 claims
- Myrbetriq277 claims
- Gemtesa179 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 83.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $584.01
19 payments; by number, the most common kind was food and beverage; the largest payer was Sumitomo Pharma America, Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mhs Primary Care, Inc.Middletown, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Johnny A. Chang among 185 urology physician records in Connecticut
Johnny A. Chang, M.D. is one of 185 urology physician records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 81% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1997 · median 2006 among the 127 with a school on file
- Record last updated2026 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Connecticut
There are 185 urology physician records in Connecticut.
All 185 in Connecticut → Every provider in Middletown → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Richard Frink, MDMiddletown, CT 064571306941067
- Geoffrey Herter, MDMiddletown, CT 064571598851651
- Dana Kivlin, D.O.Middletown, CT 064571679869572
- Jonathan Li, MDMiddletown, CT 064571619436169
- Edward Myer, M.D.Middletown, CT 064571487845541
- Jeffrey Rabuffo, MDMiddletown, CT 064571790880441
- Timothy Siegrist, M.D.Middletown, CT 064571720279946
- Harvey Armel, M.D.Milford, CT 064601053312173
Common questions
What is Johnny A. Chang, M.D.'s NPI number?
Johnny A. Chang, M.D.'s National Provider Identifier (NPI) is 1619975182, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Johnny A. Chang, M.D. located?
The NPPES record lists a practice address at 410 Saybrook RD, Middletown, CT, 06457. Phone: (860) 358-2270. Providers update this record themselves, so call before visiting.
How can I verify Johnny A. Chang, M.D.'s license?
NPPES lists Connecticut license number 041177, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Johnny A. Chang, M.D. prescribe under Medicare Part D?
In 2024, Johnny A. Chang, M.D. had 5,935 Medicare Part D claims for 1,126 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
What is Johnny A. Chang, M.D.'s MIPS final score?
The 2023 MIPS final score is 83.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.