Jill Feffer, MD
NPI 1588906267 · Endocrinology, Diabetes & Metabolism Physician · Elmhurst, NY
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jill Feffer, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Elmhurst, NY (NPI 1588906267).
Provider details
- NPI number
- 1588906267
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 276609 (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
13 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
- 2013-03-20
- Last updated
- 2025-06-30
- Certified
- 2025-06-30
Frequently asked questions
- What is Jill Feffer's NPI number?
- Jill Feffer's National Provider Identifier (NPI) is 1588906267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jill Feffer's specialty?
- Jill Feffer is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Jill Feffer located?
- Jill Feffer's practice location on file with NPPES is 7901 Broadway, Elmhurst, NY 11373-1329.
- What is Jill Feffer's phone number?
- The practice phone number listed in the NPPES registry for Jill Feffer is (718) 334-3951.
- Does Jill Feffer accept Medicare?
- Jill Feffer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jill Feffer's NPI active?
- Yes — Jill Feffer's NPI (1588906267) is active in the NPPES registry as of the last update on 2025-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.