Thai Donenfeld, MD
Internal Medicine Physician · Brooklyn, NY
Thai Donenfeld, MD is an internal medicine physician with a practice address in Brooklyn, New York, and NPI 1184251993, issued on Mar 24, 2020. Check the license (New York 334955, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Thai Donenfeld
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 334955 NY
Self-reported in NPPES; status is on the state search - Practice location
- Maimonides Medical Center, Brooklyn, NY 11219
- Phone
- (718) 283-6000
- Enumerated
- Mar 24, 2020
- Record last updated
- May 12, 2026
- Medicare enrollment
- Enrolled (PECOS I20260513002088); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at Maimonides Medical Center
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Muhammad Salman Afzal, MBBSStudent in an Organized Health Care Education/Training Program1588506216
- Akhilesh AgarwalStudent in an Organized Health Care Education/Training Program1245928548
- Zain AhmadStudent in an Organized Health Care Education/Training Program1487448809
- Eliza Ahmed, D.O.Anesthesiology Physician1417531401
Verify Thai Donenfeld 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 334955Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
23 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 96% of 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.
Thai Donenfeld among 12,067 internal medicine physician records in New York
Thai Donenfeld, MD 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 2020, is newer than 87% of them.
- NPI issued2020 · 87% of these records are older, 9% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2020 · median 2002 among the 7,221 with a school on file
- Record last updated2026 · 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
- Mark Azbel, M.D.Brooklyn, NY 112191306847405
- Michael Byrne, M.D.Brooklyn, NY 112191760482566
- David Cohen, M.D., M.SC.Brooklyn, NY 112191710987243
- Elie Hamaoui, M.D.Brooklyn, NY 112191598759508
- Jack Hellman, MDBrooklyn, NY 112191518950146
- Michael Josovitz, MDBrooklyn, NY 112191538152459
- Jonathan Leibowitz, M.D.Brooklyn, NY 112191588665012
- Robert Mann, M.D.Brooklyn, NY 112191013917129
Common questions
What is Thai Donenfeld, MD's NPI number?
Thai Donenfeld, MD's National Provider Identifier (NPI) is 1184251993, issued on Mar 24, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Thai Donenfeld, MD located?
The NPPES record lists a practice address at Maimonides Medical Center, Brooklyn, NY, 11219. Phone: (718) 283-6000. Providers update this record themselves, so call before visiting.
How can I verify Thai Donenfeld, MD's license?
NPPES lists New York license number 334955, 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 Thai Donenfeld, MD prescribe under Medicare Part D?
In 2024, Thai Donenfeld, MD had 23 Medicare Part D claims; 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.