Marvyn Allen Gan Chan, M.D.
Student in an Organized Health Care Education/Training Program · Brooklyn, NY
Marvyn Allen Gan Chan, M.D. is a student in an organized health care education/training program with a practice address in Brooklyn, New York, and NPI 1811512890, issued on Jun 15, 2020. Check the license with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marvyn Allen Gan Chan
- Credential
- M.D.
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 506 6TH St, Brooklyn, NY 11215
- Phone
- (718) 780-3000
- Enumerated
- Jun 15, 2020
- Record last updated
- Jul 3, 2026
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 37,241 in New York → Look up another NPI →
Also registered at 506 6TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danielle Abadi, MDPediatrics Physician1003298993
- Haley Abbott, DDSStudent in an Organized Health Care Education/Training Program1568313161
- Jacob Abraham, MDStudent in an Organized Health Care Education/Training Program1043009665
- Maria Abraham, M.D.Pediatrics Physician1184039463
- Alexander Abramov, PA-CPhysician Assistant1487339511
- Eric Abrams, M.D.Emergency Medicine Physician1851737340
Verify Marvyn Allen Gan Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024
127 Medicare Part D claims for 27 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.
Most prescribed
- Carvedilol14 claims
- Rosuvastatin Calcium13 claims
- Atorvastatin Calcium12 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.
Marvyn Allen Gan Chan among 37,241 student in an organized health care education/training program records in New York
Marvyn Allen Gan Chan, M.D. is one of 37,241 student in an organized health care education/training program records with a practice address in New York. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 17% of them.
- NPI issued2020 · 17% of these records are older, 79% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 5% of these records are
- Record last updated2026 · 24% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4,987 student in an organized health care education/training program records list a practice address in Brooklyn
They are 4,987 of the 64,057 NPPES records with a practice address in Brooklyn, and 37,241 student in an organized health care education/training program records in New York.
All 37,241 in New York → Every provider in Brooklyn → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Grace Abraham, REGISTERED NURSEBrooklyn, NY 112151467728717
- Sultan AlandijaniBrooklyn, NY 112151376881433
- Mazin Alhamdani, M.D.Brooklyn, NY 112151831454610
- Abdulraheem Alshangiti, M.D.Brooklyn, NY 112151376826578
- Kenneth Barker, D.M.D.Brooklyn, NY 112151093012817
- Wesley Citron, D.M.D.Brooklyn, NY 112151790049021
- Rawan Daghistani, M.D.Brooklyn, NY 112151285980557
- Stephanie Dumanian, D.D.S.Brooklyn, NY 112151194013821
Common questions
What is Marvyn Allen Gan Chan, M.D.'s NPI number?
Marvyn Allen Gan Chan, M.D.'s National Provider Identifier (NPI) is 1811512890, issued on Jun 15, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Marvyn Allen Gan Chan, M.D. located?
The NPPES record lists a practice address at 506 6TH St, Brooklyn, NY, 11215. Phone: (718) 780-3000. Providers update this record themselves, so call before visiting.
How can I verify Marvyn Allen Gan Chan, M.D.'s license?
Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Marvyn Allen Gan Chan, M.D. prescribe under Medicare Part D?
In 2024, Marvyn Allen Gan Chan, M.D. had 127 Medicare Part D claims for 27 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.