Gary Allen Herfindahl, M.D.

Primary specialty

Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X

License

G51667 Issued in CA

Practice address

908 Pine St
Mount Shasta, CA 96067-2143

Phone

(530) 926-3161

Fax

(530) 926-0406

NPI assigned

Jul 13, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Other identifiers 6

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1152748800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1336164771",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "908 PINE ST",
            "city": "MOUNT SHASTA",
            "state": "CA",
            "postal_code": "960672143",
            "telephone_number": "530-926-3161",
            "fax_number": "530-926-0406"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "908 PINE ST",
            "city": "MOUNT SHASTA",
            "state": "CA",
            "postal_code": "960672143",
            "telephone_number": "530-926-3161",
            "fax_number": "530-926-0406"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HERFINDAHL",
        "first_name": "GARY",
        "middle_name": "ALLEN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-07-13",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207PE0004X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine, Emergency Medical Services",
            "state": "CA",
            "license": "G51667",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "CA",
            "license": "G51667",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "G51667",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE SHIELD OF CALIFORNIA",
            "identifier": "00G516670",
            "state": "CA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "172614",
            "state": "OR"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G516670",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CHAMPUS",
            "identifier": "0662956",
            "state": "SC"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS OF CALIFORNIA",
            "identifier": "G51667",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CALIF CHILDREN'S SERVICES",
            "identifier": "00G516670",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Jacqueline Carol Hagerty, RDH,RDHAP, MBA
• Jack Leroy Haling, MD
• Peter Spelman Halt, M.D.
• John M. Harch, M.D.
• Ramalee J Harnish, MA, LMFT
• Deanna Guide Herrera-Thomas, ED.D.
• Deborah Ann Higer
• David Glenn Holst, MD
• Nina Holzer
• Carl Damon Hopkins Jr.

• Critical Care Medicine (Internal Medicine) Physician in Mount Shasta, CA
• Providers in Mount Shasta, CA by specialty
• Critical Care Medicine (Internal Medicine) Physician 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.