Madison Rose Folsom

Primary specialty

Medical Physician AssistantTaxonomy code 363AM0700X

License

PA64808 Issued in CA

Practice address

200 W Arbor Dr
San Diego, CA 92103-9000

Phone

(800) 926-8273

Fax

(888) 539-8781

NPI assigned

May 18, 2024

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

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

The Oncology Institute Ca, a Professional CorporationGroup PAC ID 5698872398, 114 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: madison.folsom@theoncologyinstitute.ikm.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.

• The Oncology Institute Ca, a Professional Corporation

  • Hematology & Oncology Physician
  • Downey, CA
  • NPI 1275651515
  Medicare reassignment Care Compare group NPD
• Regents of the University of California

  • Pain Medicine (Anesthesiology) Physician
  • San Diego, CA
  • NPI 1376646869
  Medicare reassignment
• Starling Oncology Ca, a Professional Corporation

  • Hematology & Oncology Physician
  • Las Vegas, NV
  • NPI 1225514508
  NPD

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

{
    "created_epoch": "1715990400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773273600000",
    "number": "1699524876",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "FILE 57326",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900747326",
            "telephone_number": "800-926-8273"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 W ARBOR DR",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921039000",
            "telephone_number": "800-926-8273",
            "fax_number": "888-539-8781"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9400 Campus Point Dr",
            "address_purpose": "LOCATION",
            "city": "LA Jolla",
            "state": "CA",
            "postal_code": "920931350",
            "country_code": "US",
            "telephone_number": "800-926-8273",
            "fax_number": "888-539-8781",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "10710 N Torrey Pines Rd",
            "address_purpose": "LOCATION",
            "city": "LA Jolla",
            "state": "CA",
            "postal_code": "920371035",
            "country_code": "US",
            "telephone_number": "858-554-8984",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4250 1st Ave",
            "address_purpose": "LOCATION",
            "city": "San Diego",
            "state": "CA",
            "postal_code": "92103",
            "country_code": "US",
            "telephone_number": "800-926-8273",
            "fax_number": "888-539-8781",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FOLSOM",
        "first_name": "MADISON",
        "middle_name": "ROSE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-05-18",
        "last_updated": "2026-03-12",
        "certification_date": "2026-03-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "CA",
            "license": "PA64808",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Shane Follette
• Ellen E Follmar, DDS
• Bergen Elizabeth Folsom, MD
• David Parker Folsom, M.D.
• Laura Viviana Folsom
• Bradley D. Foltz, M.D.
• Cainan Foltz, MD
• Katherine Margit Foltz, OTR/L
• Francine Thompson Fomon-Maisel, NP
• Renee Fomusa, DPT

• Medical Physician Assistant in San Diego, CA
• Providers in San Diego, CA by specialty
• Medical Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 12, 2026; 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.