Jason A Wertheimer, D.O.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

19142 Issued in CA

Practice address

1823 Union St
San Francisco, CA 94123-4307

Phone

(888) 663-6331

Fax

(415) 252-7176

NPI assigned

Apr 18, 2017

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

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, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

One Medical Group IncGroup PAC ID 2567623739, 330 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Marinhealth Medical Center Hospital, Greenbrae, CA, CCN 050360
• California Pacific Medical Center- Van Ness Campus Hospital, San Francisco, CA, CCN 050047

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.

• One Medical Group, Inc.

  • Family Medicine Physician
  • San Francisco, CA
  • NPI 1467781641
  Medicare reassignment Care Compare group NPD
• My Health Medical Group Inc

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1265719033

  Family Medicine

  NPD
• One Medical Group, Inc

  • Family Medicine Physician
  • Tigard, OR
  • NPI 1891521134
  NPD
• California Pacific Medical Group, Inc.

  • Multi-Specialty Clinic/Center
  • Oakland, CA
  • NPI 1275002453
  NPD (past)
• Gottlieb Community Health Services Corporation

  • Psychiatric Hospital Unit
  • Berwyn, IL
  • NPI 1700864352
  NPD (past)
• Loyola University Medical Center

  • General Practice Physician
  • Maywood, IL
  • NPI 1336159961
  NPD (past)

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

• Marin General Hospital

  • General Acute Care Hospital
  • Greenbrae, CA
  • NPI 1396725677
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1740348929
  Care Compare affiliation

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

{
    "created_epoch": "1492473600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778457600000",
    "number": "1154855922",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 EMBARCADERO CTR STE 1900",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941113723",
            "telephone_number": "888-663-6331"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1823 UNION ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941234307",
            "telephone_number": "888-663-6331",
            "fax_number": "415-252-7176"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1580 Valencia St Ste 201",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941104420",
            "country_code": "US",
            "telephone_number": "415-550-0811",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WERTHEIMER",
        "first_name": "JASON",
        "middle_name": "A",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-04-18",
        "last_updated": "2026-05-11",
        "certification_date": "2026-05-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "19142",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kathryn Anne Werner, O.D.
• Tierney Elizabeth Werner
• Nicole Ashley Wernimont, B.A.
• Rebecca Wersan, PA-C
• Beverly Lillian Wertheimer
• Kristine Werthwein
• Josh Aaron Wertz
• Alisea Wesley-Clark
• Faheem Wesley
• James Christopher Weslow, P.T.

• 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 May 11, 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.