Jill Brett Feffer, MD

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

276609 Issued in NY

Practice address

7901 Broadway
Elmhurst, NY 11373-1329

Phone

(718) 334-3951

NPI assigned

Mar 20, 2013

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

EndocrinologyAlso: Internal Medicine

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Icahn School of Medicine at Mount SinaiGroup PAC ID 8224282926, 317 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Elmhurst Hospital Center Hospital, Elmhurst, NY, CCN 330128

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H3359

Interoperability endpoints

• Direct secure messaging: jfeffer4646482@nychhc.direct-ci.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Icahn School of Medicine at Mount Sinai

  dba Mount Sinai Elmhurst Faculty practice Group

  • Orthopaedic Surgery Physician
  • Elmhurst, NY
  • NPI 1609120674
  Medicare reassignment Care Compare group NPD
• Optum Medical Care, P.C.

  dba CareMount Medical, P.C.

  • Cardiovascular Disease Physician
  • Mount Kisco, NY
  • NPI 1982643003

  Endocrinology, Diabetes & Metabolism

  Medicare reassignment NPD
• Icahn School of Medicine at Mount Sinai

  dba Mount Sinai Elmhurst Faculty Practice Group

  • Internal Medicine Physician
  • Elmhurst, NY
  • NPI 1184977324
  NPD
• Icahn School of Medicine at Mount Sinai

  dba Mount Sinai Elmhurst Faculty Practice Group

  • Diagnostic Radiology Physician
  • Elmhurst, NY
  • NPI 1619221686
  NPD
• Optum Medical Care, P.C.

  • Durable Medical Equipment & Medical Supplies
  • New Hyde Park, NY
  • NPI 1053190595
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• New York City Health and Hospitals Corporation

  dba Elmhurst Hospital Center

  • General Acute Care Hospital
  • Elmhurst, NY
  • NPI 1063426377
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1363737600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751241600000",
    "number": "1588906267",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7901 BROADWAY",
            "city": "ELMHURST",
            "state": "NY",
            "postal_code": "113731329"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7901 BROADWAY",
            "city": "ELMHURST",
            "state": "NY",
            "postal_code": "113731329",
            "telephone_number": "718-334-3951"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FEFFER",
        "first_name": "JILL",
        "middle_name": "BRETT",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-03-20",
        "last_updated": "2025-06-30",
        "certification_date": "2025-06-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "NY",
            "license": "276609",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Taliat Abiodun Fawole, M.D
• Faye Grand, Otr CHT PC (Hand Therapy Center)
• Faye Grand, Otr CHT PC (Faye Grand Hand Therapy Center)
• Arsen Faylayev, PHARMD
• Federation of Organizations for the Ny State Mentally Disabled Inc
• Jennifer Hope Feifer, MS, RD
• Rikki Feinstein Lane, M.D.
• Fetije Fejzullaj
• Jay Robin Feld, D.MIN., LMFT
• Alice Nicole Felella, M.D.

• Endocrinology, Diabetes & Metabolism Physician in Elmhurst, NY
• Providers in Elmhurst, NY by specialty
• Endocrinology, Diabetes & Metabolism Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.