Audrey Liyang Chai, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

186492 Issued in CA

Practice address

500 Pasteur Dr
Palo Alto, CA 94304-1048

Phone

(650) 723-4000

NPI assigned

Mar 26, 2020

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1585180800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784505600000",
    "number": "1649807835",
    "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"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "500 PASTEUR DR",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041048",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1200 N State Street Clinic Tower",
            "address_2": "Suite A7D",
            "address_purpose": "LOCATION",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "900331029",
            "country_code": "US",
            "telephone_number": "323-409-7556",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHAI",
        "first_name": "AUDREY",
        "middle_name": "LIYANG",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-03-26",
        "last_updated": "2026-07-20",
        "certification_date": "2026-07-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "186492",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rita Chadarevian-Zorian, M.D.
• Gurleen Chadha, MD
• Deepika Reddy Chadive, MD
• Whitney Anne Chadwick, MD
• Antonio Chahine, MD, MSPH
• Ariel Chaisson
• Bruce Chamberlain
• Nicholas Chambers
• Vienna Chambers
• Katharine Louise Champoux

• Internal Medicine Physician in Palo Alto, CA
• Providers in Palo Alto, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 20, 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.