Ellen Birenbaum, MD
Internal Medicine Physician · New York, NY
Ellen Birenbaum, MD is an internal medicine physician with a practice address in New York, New York, and NPI 1447220736, issued on Jan 26, 2006. Check the license (New York 150923, as entered in NPPES) on the NYS Education Department, Office of the Professions; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ellen Birenbaum
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 150923 NY
Self-reported in NPPES; status is on the state search - Practice location
- 10 Union Square E, New York, NY 10003
- Phone
- (212) 420-3494
- Enumerated
- Jan 26, 2006
- Record last updated
- Aug 17, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 00806551 NY
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 10 Union Square E
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ellen Birenbaum 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 150923Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ellen Birenbaum among 12,067 internal medicine physician records in New York
Ellen Birenbaum, 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 not. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2012 · 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).
2,434 internal medicine physician records list a practice address in New York
They are 2,434 of the 98,468 NPPES records with a practice address in New York, and 12,067 internal medicine physician records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,067 in New York → Every provider in New York → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Ronald Blum, MDNew York, NY 100031336122407
- Barbara Cheung, MDNew York, NY 100031023006020
- Alan Dubrow, MDNew York, NY 100031427031830
- Jane Falkenstein, MDNew York, NY 100031083604227
- Michael Felsen, MDNew York, NY 100031891784286
- Jonathan Field, MDNew York, NY 100031578547006
Common questions
What is Ellen Birenbaum, MD's NPI number?
Ellen Birenbaum, MD's National Provider Identifier (NPI) is 1447220736, issued on Jan 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Birenbaum, MD located?
The NPPES record lists a practice address at 10 Union Square E, New York, NY, 10003. Phone: (212) 420-3494. Providers update this record themselves, so call before visiting.
How can I verify Ellen Birenbaum, MD's license?
NPPES lists New York license number 150923, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.