John Gian, M.D.
Internal Medicine Physician · Brooklyn, NY
John Gian, M.D. is an internal medicine physician with a practice address in Brooklyn, New York, and NPI 1316931520, issued on Sep 2, 2005. Check the license (New York 223263-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John Gian
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 223263-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 760 Broadway, Brooklyn, NY 11206
- Phone
- (718) 963-8000
- Enumerated
- Sep 2, 2005
- Record last updated
- Apr 21, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 02227250 NY
- Medicare enrollment
- Enrolled (PECOS I20040419000317); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1998
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 760 Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sheba Abella-Barbosa, N.P.Acute Care Nurse Practitioner1790846467
- Janesse Abreu, PAPhysician Assistant1538809025
- Uchechi Adeniran, M.D.Student in an Organized Health Care Education/Training Program1750958831
Verify John Gian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 223263-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,262 Medicare Part D claims for 71 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Atorvastatin Calcium148 claims
- Losartan Potassium95 claims
- Metformin Hcl79 claims
- Amlodipine Besylate75 claims
- Acarbose59 claims
- Rosuvastatin Calcium51 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.
Bills Medicare through one group practice
- New York City Health And Hospitals CorporationStaten Island, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Gian among 12,067 internal medicine physician records in New York
John Gian, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 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, 92% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1998 · median 2002 among the 7,221 with a school on file
- Record last updated2015 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,497 internal medicine physician records list a practice address in Brooklyn
They are 1,497 of the 64,057 NPPES records with a practice address in Brooklyn, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Brooklyn → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Michael Akerman, M.D.Brooklyn, NY 112061821082074
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- Andrew Chin, MDBrooklyn, NY 112061720170020
- Edward Fishkin, M.D.Brooklyn, NY 112061437179652
- Friderika Garbuz, MDBrooklyn, NY 112061487742110
- Kathrine Gold, M.D.Brooklyn, NY 112061982604310
- Samia Rizkalla, M.D.Brooklyn, NY 112061275632259
- Ricardo Sequeira, M.D.Brooklyn, NY 112061568490613
Common questions
What is John Gian, M.D.'s NPI number?
John Gian, M.D.'s National Provider Identifier (NPI) is 1316931520, issued on Sep 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Gian, M.D. located?
The NPPES record lists a practice address at 760 Broadway, Brooklyn, NY, 11206. Phone: (718) 963-8000. Providers update this record themselves, so call before visiting.
How can I verify John Gian, M.D.'s license?
NPPES lists New York license number 223263-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Gian, M.D. prescribe under Medicare Part D?
In 2024, John Gian, M.D. had 1,262 Medicare Part D claims for 71 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.