NPIMap

Individual provider Active NPI

Olivia Irene Janus, PA-C

  • Physician Assistant
  • Stanford, CA
National Provider Identifier
1891221263
Registry record updated Oct 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
57003 Issued in CA
Practice address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone
(650) 723-4000
NPI assigned
May 4, 2017
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 29, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Physician Assistant 363AM0700X 57003 CA
Physician Assistant 363A00000X 57003 CA Primary

Addresses

Primary practice location

300 Pasteur Dr
Stanford, CA 94305-2200

Mailing address

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in GA, CA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20170913001658 GA Practitioner - Physician Assistant 3375816317 Reassigns benefits to 1 organization
I20190815002373 CA Practitioner - Physician Assistant 3375816317 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians

Practice addresses (Care Compare)

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Hospital & facility affiliations

  • Stanford Health Care Hospital, Stanford, CA, CCN 050441

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
57003CAMDGeneral Practice Dentistry

Practice roles

OrganizationSpecialtyStatusNew patients
Stanford Health Care CurrentSince Jul 23, 2019 Accepting new patients
Stanford Health Care CurrentSince Jul 23, 2019 Accepting new patients

Locations

300 Pasteur Dr
Stanford, CA 94305
Phone (650) 498-5710

Organizations & group practices 4

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.

Hospital & facility affiliations 7

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1493856000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761696000000",
    "number": "1891221263",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JANUS",
        "first_name": "OLIVIA",
        "middle_name": "IRENE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-05-04",
        "last_updated": "2025-10-29",
        "certification_date": "2025-10-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "CA",
            "license": "57003",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "57003",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Stanford, CA

Sources for this page

Verify at the official NPI Registry.