Jeffrey Spencer, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

175558 Issued in NY

Practice address

400 E Main St
Northern Westchester Hospital
Mount Kisco, NY 10549-3417

Phone

(914) 666-1691

NPI assigned

Jul 29, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in NY, CT2 enrollments

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 2

Specialty

Anesthesiology

Education

Vanderbilt University School of Medicine, 1987

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Bridgeport Anesthesia Associates, P.C.Group PAC ID 7113824616, 14 clinicians

Greater Connecticut Anesthesia Associates LLCGroup PAC ID 1254727167, 2 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

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

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.

• Bridgeport Anesthesia Associates, P.C.

  • Anesthesiology Physician
  • Bridgeport, CT
  • NPI 1174549257
  Medicare reassignment Care Compare group NPD
• Greater Connecticut Anesthesia Associates, LLC

  • Anesthesiology Physician
  • Fairfield, CT
  • NPI 1730837576
  Medicare reassignment Care Compare group NPD
• North Shore - Lij Anesthesiology, PC

  • Anesthesiology Physician
  • Chappaqua, NY
  • NPI 1417401266
  Medicare reassignment NPD
• Optum Medical Care, P.C.

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

  CT

  Medicare reassignment NPD
• Optum Medical Care, P.C.

  • Durable Medical Equipment & Medical Supplies
  • New Hyde Park, NY
  • NPI 1053190595
  NPD
• North Shore-Lij Medical PC

  • Urology Physician
  • Great Neck, NY
  • NPI 1053688572
  NPD (past)
• Trustees of Columbia University in the City of New York

  • Anesthesiology Physician
  • New York, NY
  • NPI 1841239829
  NPD (past)
• Greenwich Anesthesiology Associates, PC

  • Anesthesiology Physician
  • Greenwich, CT
  • NPI 1972557486
  NPD (past)

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

{
    "created_epoch": "1122595200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1609876853",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "43 KENSICO DR",
            "address_2": "2ND FLOOR",
            "city": "MOUNT KISCO",
            "state": "NY",
            "postal_code": "105491009",
            "telephone_number": "914-666-8866",
            "fax_number": "914-666-6777"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 E MAIN ST",
            "address_2": "NORTHERN WESTCHESTER HOSPITAL",
            "city": "MOUNT KISCO",
            "state": "NY",
            "postal_code": "105493417",
            "telephone_number": "914-666-1691"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SPENCER",
        "first_name": "JEFFREY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-29",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NY",
            "license": "175558",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01565008",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• South Bedford Oral & Maxillofacial Surgery PLLC
• Eugene Spagnuolo, MD
• Laura Spallina, FNP
• Special Procedures Physicians LLP
• Benjamin A Spencer, MD
• Steven Spitz, PH.D.
• Steven Robert Spitzer, D.D.S.
• Spreading Roots Acupuncture, PLLC
• Stable Friendships Foundation, Inc
• Joann C Stafford

• Anesthesiology Physician in Mount Kisco, NY
• Providers in Mount Kisco, NY by specialty
• Anesthesiology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.