Tamara O'Nan, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA21869 Issued in CA

Practice address

1401 Dove St Ste 420
Newport Beach, CA 92660-2420

Phone

(949) 945-0927

Fax

(949) 269-6263

NPI assigned

Oct 4, 2011

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 1

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

State licenses

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.

• Allied Psychiatry and Mental Health

  • Psychiatry Physician
  • Newport Beach, CA
  • NPI 1457829731
  Medicare reassignment

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

{
    "created_epoch": "1317686400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1741737600000",
    "number": "1477837862",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3699",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926598699",
            "telephone_number": "657-241-3600",
            "fax_number": "657-241-7708"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1401 DOVE ST STE 420",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926602420",
            "telephone_number": "949-945-0927",
            "fax_number": "949-269-6263"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1190 W. Baker St",
            "address_2": "Ste 100",
            "address_purpose": "LOCATION",
            "city": "Costa Mesa",
            "state": "CA",
            "postal_code": "926264105",
            "country_code": "US",
            "telephone_number": "714-668-2500",
            "fax_number": "714-668-2515",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'NAN",
        "first_name": "TAMARA",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-10-04",
        "last_updated": "2025-03-12",
        "certification_date": "2025-03-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "CA",
            "license": "PA21869",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA21869",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE RAILROAD",
            "identifier": "P01199945",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Carey L O'Bryan IV, M.D.
• Christopher P O'Carroll, M.D.
• Elizabeth O'Connell, MD
• Bethany Marie Stelnicki O'Connor, M.D.
• Matthew O'Mahoney, D.P.T.
• Esther Rachel O'Neil, AMFT
• Oac Southern Medical Professional Corporation
• Oasis Anesthesia, Surgical and Medical Group, Inc
• Chanel E Obas
• Vivian Oberling, PSYD

• Physician Assistant in Newport Beach, CA
• Providers in Newport Beach, 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 12, 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.