Mason Lee Donnell, PHD, PA

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

62685 Issued in CA

Practice address

4000 Civic Center Dr
San Rafael, CA 94903-4171

Phone

(415) 492-3333

NPI assigned

Sep 13, 2022

Sex

Male

Sole proprietor

Yes

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

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant, Doctor of Philosophy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mdonnell704109@direct.ochin.org

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.

• Ole Health

  • Federally Qualified Health Center (FQHC)
  • Napa, CA
  • NPI 1700976503
  Medicare reassignment
• Regents Univ of California UCSF

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1124439807
  Medicare reassignment
• Ole Health

  • Federally Qualified Health Center (FQHC)
  • Fairfield, CA
  • NPI 1245043165
  NPD
• Ole Health

  • Federally Qualified Health Center (FQHC)
  • Napa, CA
  • NPI 1447687330
  NPD

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

{
    "created_epoch": "1663027200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772841600000",
    "number": "1891417390",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1141 PEAR TREE LN STE 100",
            "city": "NAPA",
            "state": "CA",
            "postal_code": "945586485",
            "telephone_number": "707-254-1770"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4000 CIVIC CENTER DR",
            "city": "SAN RAFAEL",
            "state": "CA",
            "postal_code": "949034171",
            "telephone_number": "415-492-3333"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "300 Hartle Ct",
            "address_purpose": "LOCATION",
            "city": "Napa",
            "state": "CA",
            "postal_code": "945594078",
            "country_code": "US",
            "telephone_number": "707-254-1775",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DONNELL",
        "first_name": "MASON",
        "middle_name": "LEE",
        "name_prefix": "Dr.",
        "credential": "PHD, PA",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2022-09-13",
        "last_updated": "2026-03-07",
        "certification_date": "2026-03-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "62685",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Linda Dolan, PSYD
• Ronald Domin
• Emele Dominiko
• Kristi F Dommen
• Lindsay Kristine Donellan
• Amy Donoso
• Angelika Dooley
• Erika Dorwart
• Alexie Dossa
• Douglas D Gerstein, MD, Inc

• Physician Assistant in San Rafael, CA
• Providers in San Rafael, CA by specialty
• Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 7, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.