Ellen Birenbaum, MD
NPI 1447220736 · Internal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Birenbaum, MD is a Internal Medicine Physician provider in New York, NY (NPI 1447220736).
Provider details
- NPI number
- 1447220736
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 150923 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-26
- Last updated
- 2012-08-17
Frequently asked questions
- What is Ellen Birenbaum's NPI number?
- Ellen Birenbaum's National Provider Identifier (NPI) is 1447220736, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Birenbaum's specialty?
- Ellen Birenbaum is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ellen Birenbaum located?
- Ellen Birenbaum's practice location on file with NPPES is 10 Union Square E, New York, NY 10003.
- What is Ellen Birenbaum's phone number?
- The practice phone number listed in the NPPES registry for Ellen Birenbaum is (212) 420-3494.
- Does Ellen Birenbaum accept Medicare?
- Ellen Birenbaum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Birenbaum's NPI active?
- Yes — Ellen Birenbaum's NPI (1447220736) is active in the NPPES registry as of the last update on 2012-08-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.