Stephen L. Seagren, M.D.

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

G 24159 Issued in CA

Practice address

3855 Health Sciences Dr. 0843
Moores Ucsd Cancer Center
La Jolla, CA 92093-0843

Phone

(585) 822-6040

NPI assigned

May 4, 2006

Last updated

Jul 13, 2026By the provider in NPPES

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Regents of the University of California

  • Diagnostic Radiology Physician
  • San Diego, CA
  • NPI 1558463927

  Radiation Oncology

  NPD (past)
• Regents of the University of California

  • Surgery Physician
  • San Diego, CA
  • NPI 1740382993
  NPD (past)

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

{
    "created_epoch": "1146700800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1386692424",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5413 AVENIDA FIESTA",
            "city": "LA JOLLA",
            "state": "CA",
            "postal_code": "920377202",
            "telephone_number": "858-822-6040"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3855 HEALTH SCIENCES DR. 0843",
            "address_2": "MOORES UCSD CANCER CENTER",
            "city": "LA JOLLA",
            "state": "CA",
            "postal_code": "920930843",
            "telephone_number": "585-822-6040"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SEAGREN",
        "first_name": "STEPHEN",
        "middle_name": "L.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-04",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "CA",
            "license": "G 24159",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Scripps Health Inpatient Providers Medical Group Inc.
• Scripps Plastic Surgery Medical Group Inc (O Glynn Bolitho)
• Scripps Surgery Center, LLC
• SD Psychology, a Professional Corporation
• SDPM Medical Group, Incorporated (San Diego Pain Management)
• Laurel Seaholm, L.AC., DIPL. O.M.
• Mary Susan Seaman, NP
• Sean Ryan, M.D., a Professional Corporation
• Sarah Dawn Searle, RN, CCE, RPYT
• Seaside Chiropractic (Dr David S Klein)

• Radiation Oncology Physician in La Jolla, CA
• Providers in La Jolla, CA by specialty
• Radiation Oncology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.