Stephen P Sullivan, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

219553 Issued in NY

Practice address

120 White Plains Rd Ste 420
Tarrytown, NY 10591-5522

Phone

(914) 909-5838

Fax

(914) 909-5840

NPI assigned

Jun 13, 2006

Last updated

Oct 31, 2025By the provider in NPPES

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

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

Psychiatry

Education

State University of New York Downstate Medical Center, 1997

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Westchester Psychiatric Associates, PLLCGroup PAC ID 4082891122, 3 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Westchester Medical Center Hospital, Valhalla, NY, CCN 330234

Merit-based Incentive Payment System (MIPS)

Final score

75 of 100Reported as group

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H9678
• 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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Westchester Psychiatric Associates, PLLC

  • Psychiatry Physician
  • Tarrytown, NY
  • NPI 1992004477
  Medicare reassignment Care Compare group NPD
• Westchester Medical Center Advanced Physician Services, PC

  • Surgery Physician
  • Valhalla, NY
  • NPI 1912131392
  Medicare reassignment NPD
• Westchester Medical Center Advanced Physician Services PC

  • Anesthesiology Physician
  • Valhalla, NY
  • NPI 1740687458
  NPD
• Julia Feuer Health P.C.

  • Psychiatry Physician
  • Oradell, NJ
  • NPI 1518714716
  NPD
• Neil Zolkind, MD PC

  • Behavioral Neurology & Neuropsychiatry Physician
  • Tarrytown, NY
  • NPI 1821418625
  NPD (past)
• Preferred Psychiatric Associates of Westchester

  • Psychiatry Physician
  • Hartsdale, NY
  • NPI 1679615983
  NPD (past)
• Westchester Faculty Psychological Associates PC

  • Psychologist
  • Valhalla, NY
  • NPI 1528080603
  NPD (past)

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

• Westchester County Health Care Corporation

  dba Westchester Medical Center

  • General Acute Care Hospital
  • Valhalla, NY
  • NPI 1932280666
  Care Compare affiliation

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

{
    "created_epoch": "1150156800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761868800000",
    "number": "1891738597",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "120 WHITE PLAINS RD STE 420",
            "city": "TARRYTOWN",
            "state": "NY",
            "postal_code": "105915522",
            "telephone_number": "914-909-5838",
            "fax_number": "914-909-5840"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "120 WHITE PLAINS RD STE 420",
            "city": "TARRYTOWN",
            "state": "NY",
            "postal_code": "105915522",
            "telephone_number": "914-909-5838",
            "fax_number": "914-909-5840"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 Woods Rd.",
            "address_purpose": "LOCATION",
            "city": "Valhalla",
            "state": "NY",
            "postal_code": "10595",
            "country_code": "US",
            "telephone_number": "914-493-7124",
            "fax_number": "914-493-1015",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SULLIVAN",
        "first_name": "STEPHEN",
        "middle_name": "P",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-13",
        "last_updated": "2025-10-31",
        "certification_date": "2025-10-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "NY",
            "license": "219553",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "02328843",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Renee Stewart, LMSW
• Margaret A Stillman, MD
• Nicole Marie Struensee, LCSW
• Student Assistance Services Corporation
• Janet N. Sullivan, M.D.
• Sun River Health Inc (Hudson River HealthCare, Inc. - Health Home)
• Walter Bohdan Szpur, M.D.
• Agnieszka Tachkov, PTA
• Richard S. Talan, D.D.S.
• Bandele Talib Jr., ATC

• Psychiatry Physician in Tarrytown, NY
• Providers in Tarrytown, NY by specialty
• Psychiatry Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 31, 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.