Harrison Jacob Alter, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

G80744 Issued in CA

Practice address

1404 Franklin St Ste 200
Oakland, CA 94612-3208

Phone

(510) 891-8950

Fax

(510) 832-2104

NPI assigned

Nov 10, 2005

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

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

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: halter14023@alamedahs.direct-ci.com

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.

• County of Alameda

  • Federally Qualified Health Center (FQHC)
  • Oakland, CA
  • NPI 1881632867
  NPD

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

{
    "created_epoch": "1131580800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749427200000",
    "number": "1972584415",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1511 GRANT ST",
            "city": "BERKELEY",
            "state": "CA",
            "postal_code": "947031133",
            "telephone_number": "510-225-8406"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1404 FRANKLIN ST STE 200",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946123208",
            "telephone_number": "510-891-8950",
            "fax_number": "510-832-2104"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALTER",
        "first_name": "HARRISON",
        "middle_name": "JACOB",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-10",
        "last_updated": "2025-06-09",
        "certification_date": "2025-06-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "G80744",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G807440",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Alta East Bay Pathology, Inc.
• Altais
• Altais Care Network - Arizona, Inc.
• Altais Care Network - Hawaii, Inc.
• Gregory Seth Alter, PH.D.
• Victor Alterescu, R.N.
• Alternative Family Services
• Alternative Family Services
• Alternatives in Action
• Alexander Joshua Altman

• Emergency Medicine Physician in Oakland, CA
• Providers in Oakland, CA by specialty
• Emergency Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 9, 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.