Hillary Koster, MS

Primary specialty

PsychologistTaxonomy code 103T00000X

License

MFC32149 Issued in CA

Practice address

2120 Market Street
Ste 209
San Francisco, CA 94114-1375

Phone

(415) 810-5572

NPI assigned

Oct 25, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Science

State licenses

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

{
    "created_epoch": "1161734400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1851475032",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2120 MARKET STREET",
            "address_2": "STE 209",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941141375",
            "telephone_number": "415-810-5572"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2120 MARKET STREET",
            "address_2": "STE 209",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941141375",
            "telephone_number": "415-810-5572"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KOSTER",
        "first_name": "HILLARY",
        "name_prefix": "Ms.",
        "credential": "MS",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-10-25",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": "CA",
            "license": "MFC32149",
            "primary": true
        },
        {
            "code": "106H00000X",
            "taxonomy_group": "",
            "desc": "Marriage & Family Therapist",
            "state": null,
            "license": "MFC32149",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Catherine Koss, M.D.
• Megan Kossar, L.C.S.W.
• Alena Kossman
• Noele A Kostelic
• Felicitas Koster, D.O.
• Skylar Marie Kostick, PA-C
• Vera Kostko
• Katina K Kostoulas, PHD
• Alexander Louis Kostrinsky-Thomas, DO
• Martin Kosztowski, M.D.

• Psychologist in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Psychologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.