Ahna Olson, P.A.

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

54877 Issued in CA

Practice address

795 El Camino Real
Palo Alto, CA 94301-2302

Phone

(650) 253-2977

NPI assigned

Aug 10, 2016

Sex

Female

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: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: aolson410155@hisp.ehr.sutterhealth.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.

• Permanente Medical Group Inc

  • Internal Medicine Physician
  • Santa Clara, CA
  • NPI 1073606299
  Medicare reassignment NPD
• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104
  Medicare reassignment NPD
• Regents of the University of California

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1760552343
  Medicare reassignment
• Sutter Bay Medical Foundation

  • Multi-Specialty Clinic/Center
  • Palo Alto, CA
  • NPI 1013950807
  Medicare reassignment
• University of California San Francisco

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  Medicare reassignment
• Permanente Medical Group, Inc

  • Clinical Medical Laboratory
  • San Jose, CA
  • NPI 1497971584
  NPD
• Sutter Bay Medical Foundation

  • Multi-Specialty Clinic/Center
  • Orinda, CA
  • NPI 1366898538
  NPD
• Sutter Bay Medical Foundation

  • Clinical Medical Laboratory
  • Santa Clara, CA
  • NPI 1669287033
  NPD
• University of California San Francisco

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1164512851
  NPD
• University of California San Francisco

  • Community/Retail Pharmacy
  • San Francisco, CA
  • NPI 1659141711
  NPD

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

{
    "created_epoch": "1470787200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751846400000",
    "number": "1528512225",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "325 DISTEL CIR",
            "city": "LOS ALTOS",
            "state": "CA",
            "postal_code": "940221408",
            "telephone_number": "650-253-2977"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "795 EL CAMINO REAL",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943012302",
            "telephone_number": "650-253-2977"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2120 L St NW Ste 450",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200371541",
            "country_code": "US",
            "telephone_number": "320-491-2442",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2 Embarcadero Ctr Lbby Level",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941113823",
            "country_code": "US",
            "telephone_number": "888-663-6331",
            "fax_number": "415-252-7176",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OLSON",
        "first_name": "AHNA",
        "credential": "P.A.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-08-10",
        "last_updated": "2025-07-07",
        "certification_date": "2025-07-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "DC",
            "license": "PA031276",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "54877",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Enrique Alfredo Olivella Vives, M.F.T
• Nina Ollikainen
• Keely Elizabeth Olmsted, MD
• Anna Michelle Dillier Olsen
• Eric Olsen
• Inger Louise Olson, M.D.
• Madeline Olson
• Suzanne Olson, MSW, LCSW
• Elizabeth G. Omalley, LMFT
• Bishr Omary, MD, PHD

• Physician Assistant in Palo Alto, CA
• Providers in Palo Alto, CA by specialty
• Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 7, 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.