NPPES file of Aug 9, 2026

Andrew Y. Chang, M.D.

Cardiovascular Disease Physician · New Haven, CT

Andrew Y. Chang, M.D. is a cardiovascular disease physician with a practice address in New Haven, Connecticut, and NPI 1366888778, issued on May 13, 2013. Check the license (Connecticut 374139, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366888778
Name
Andrew Y. Chang
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License numbers
374139 CT
131726 CA
Self-reported in NPPES; status is on the state search
Practice location
800 Howard Ave, New Haven, CT 06519
Phone
(203) 785-4127
Enumerated
May 13, 2013
Record last updated
Jun 3, 2024
Fax
(203) 785-7144
Medicare enrollment
Enrolled (PECOS I20240617001873); accepts Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 800 Howard Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sonya Abdel-Razeq, MDMaternal & Fetal Medicine Physician1265415350
  2. Edouard Aboian, M.D.Vascular Surgery Physician1588830566
  3. Lynn Acton, MSSpeech-Language Pathologist1205817889
  4. Joseph Agostini, MDGeriatric Medicine (Internal Medicine) Physician1104832146
  5. Nita Ahuja, M.D.Surgery Physician1093779308
  6. Christina Allen, MDSports Medicine (Orthopaedic Surgery) Physician1841242351

Verify Andrew Y. Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 374139
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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99% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

31 Medicare Part D claims for 12 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.

  1. Andrew Chang31
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate11 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.

Industry payments in 2024: $58.17

1 payment: food and beverage; the largest payer was Impulse Dynamics (USA) Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Andrew Chang$58.17
  2. Specialty average$3,819.56

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

  1. Yale UniversityBranford, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Andrew Y. Chang among 503 cardiovascular disease physician records in Connecticut

Andrew Y. Chang, M.D. is one of 503 cardiovascular disease physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 79% of them.

  • NPI issued2013 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2013 · median 2000 among the 348 with a school on file
  • Record last updated2024 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

96 cardiovascular disease physician records list a practice address in New Haven

They are 96 of the 9,793 NPPES records with a practice address in New Haven, and 503 cardiovascular disease physician records in Connecticut.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. William Batsford, MDNew Haven, CT 065191205824257
  2. Jeffrey Bender, MDNew Haven, CT 065191417947987
  3. John ChandlerNew Haven, CT 065191740262419
  4. Lawrence Cohen, MDNew Haven, CT 065191235127390
  5. Samuel Hahn, MDNew Haven, CT 065191821079120
  6. Ajoy Kapoor, M.D.New Haven, CT 065191265414395
  7. Rachel Lampert, MDNew Haven, CT 065191558359752
  8. Forrester Lee, MDNew Haven, CT 065191447248521

Common questions

What is Andrew Y. Chang, M.D.'s NPI number?

Andrew Y. Chang, M.D.'s National Provider Identifier (NPI) is 1366888778, issued on May 13, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Y. Chang, M.D. located?

The NPPES record lists a practice address at 800 Howard Ave, New Haven, CT, 06519. Phone: (203) 785-4127. Providers update this record themselves, so call before visiting.

How can I verify Andrew Y. Chang, M.D.'s license?

NPPES lists Connecticut license number 374139, 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 Andrew Y. Chang, M.D. prescribe under Medicare Part D?

In 2024, Andrew Y. Chang, M.D. had 31 Medicare Part D claims for 12 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

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.