Seth James Larsen, DO

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

20A21119 Issued in CA

Practice address

1100 Wilford Hall Loop BLDG 4554
Jbsa Lackland, TX 78236-5638

Phone

(210) 292-7331

NPI assigned

Apr 3, 2020

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

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

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.

• Pinnacle Emergency Physicians of Bakersfield, a Professional Corp

  • Emergency Medicine Physician
  • Bakersfield, CA
  • NPI 1619153251
  Medicare reassignment NPD
• Pinnacle Emergency Physicians of Bakersfield, a Professional Corp

  • Emergency Medicine Physician
  • Bakersfield, CA
  • NPI 1639415862
  NPD

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

{
    "created_epoch": "1585872000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1427687359",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1100 WILFORD HALL LOOP BLDG 4554",
            "city": "JBSA LACKLAND",
            "state": "TX",
            "postal_code": "782365638",
            "telephone_number": "210-292-7331"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1100 WILFORD HALL LOOP BLDG 4554",
            "city": "JBSA LACKLAND",
            "state": "TX",
            "postal_code": "782365638",
            "telephone_number": "210-292-7331"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LARSEN",
        "first_name": "SETH",
        "middle_name": "JAMES",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-03",
        "last_updated": "2025-07-28",
        "certification_date": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "20A21119",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Soon Wook Kwon, MD
• Benjamin David La Guardia
• Elezabeth Labib-Zuniga, AUD
• Bhavna Lalvani
• Michael Land, DO
• Kyrra Lau-Eglinton, MD
• Karen Gardner Lawrence, D.M.D.
• Michael James Lawson, MD
• Paul TSZ Tun Lee, D.D.S
• Robert Lee, LMFT

• Emergency Medicine Physician in Jbsa Lackland, TX
• Providers in Jbsa Lackland, TX by specialty
• Emergency Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2025; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.