Karen Elaine Mercola, MD

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

G30394 Issued in CA

Practice address

6901 Panoramic Highway
Stinson Beach, CA 94970-0297

Phone

(415) 868-1358

Fax

(415) 862-5000

NPI assigned

Jun 28, 2005

Last updated

Aug 6, 2026By the provider in NPPES

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

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1119916800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785974400000",
    "number": "1225035884",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 297",
            "city": "STINSON BEACH",
            "state": "CA",
            "postal_code": "949700297",
            "telephone_number": "415-868-1358",
            "fax_number": "415-862-5000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6901 PANORAMIC HIGHWAY",
            "city": "STINSON BEACH",
            "state": "CA",
            "postal_code": "949700297",
            "telephone_number": "415-868-1358",
            "fax_number": "415-862-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERCOLA",
        "first_name": "KAREN",
        "middle_name": "ELAINE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-06-28",
        "last_updated": "2026-08-06",
        "certification_date": "2026-08-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "G30394",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G303940",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Martin J Cline, M.D.
• Coastal Health Alliance (Stinson Beach Medical Center)
• Kenneth Scott Kandler, D.C.
• Anna Kristina O'Malley, M.D.
• Sitka Medical Associates PC
• Stinson Beach Fire Protection District
• Kimberly Allison Young, MD

• Hematology & Oncology Physician in Stinson Beach, CA
• Providers in Stinson Beach, CA by specialty
• Hematology & Oncology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 6, 2026; 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.