Kathryn Melissa Bergen

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

20A20578 Issued in CA

Practice address

333 1St St Ste a
San Francisco, CA 94105-2661

Phone

(888) 803-3370

NPI assigned

Apr 18, 2018

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 CA

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

Family Practice

Education

Other, 2018

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• Natividad Medical Center Hospital, Salinas, CA, CCN 050248

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

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.

• Circle Medical Care of California

  • Family Medicine Physician
  • San Francisco, CA
  • NPI 1134596091
  Medicare reassignment NPD
• County of Monterey

  • Family Medicine Physician
  • Marina, CA
  • NPI 1588617955
  NPD (past)
• Blackstone Valley Community Health Care, Inc.

  • Federally Qualified Health Center (FQHC)
  • Central Falls, RI
  • NPI 1275847766
  NPD (past)

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

• County of Monterey

  • General Acute Care Hospital
  • Salinas, CA
  • NPI 1205863255
  Care Compare affiliation

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

{
    "created_epoch": "1524009600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768262400000",
    "number": "1669969267",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "39 EAST AVE",
            "city": "PAWTUCKET",
            "state": "RI",
            "postal_code": "028604003",
            "telephone_number": "401-722-0081"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "333 1ST ST STE A",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941052661",
            "telephone_number": "888-803-3370"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BERGEN",
        "first_name": "KATHRYN",
        "middle_name": "MELISSA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-04-18",
        "last_updated": "2026-01-13",
        "certification_date": "2026-01-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "20A20578",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kristen Berendzen, M.D., PH.D.
• Anastasia Berezovskaya, PSY.D.
• Anna E Berg, LCSW
• Caitlin Berg, O.T.
• Ulrich Berg, M.D.
• Catherine Antonia Berger-Dujmovic, MD
• Amy Chang Berger, M.D.
• Bernard H. Berger, MSW
• Brian Thomas Berger, M.D.
• Charles J. Berger, MD

• Family Medicine Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Family Medicine Physician in California

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