Courtney Elizabeth Cherniak, NP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

95023187 Issued in CA

Practice address

725 Welch Rd
Palo Alto, CA 94304-1601

Phone

(650) 497-8000

NPI assigned

Dec 11, 2018

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 names 1

• Courtney Cherniak Former name

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

Nurse Practitioner

State licenses

Practice roles

Locations

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.

• LPCH Medical Group Div of Lucile

  • Children's Hospital
  • Palo Alto, CA
  • NPI 1417907940
  Medicare reassignment NPD
• Stanford Health Care

  • General Acute Care Hospital
  • Stanford, CA
  • NPI 1437292927
  Medicare reassignment NPD
• Stanford Health Care

  • Specialty Pharmacy
  • Mountain View, CA
  • NPI 1760366132
  NPD

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

{
    "created_epoch": "1544486400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1747699200000",
    "number": "1891266185",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "725 WELCH RD",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041601",
            "telephone_number": "650-497-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "725 WELCH RD",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041601",
            "telephone_number": "650-497-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1500 East Medical Center Dr",
            "address_2": "10th floor C.S. Mott Children's Hospital",
            "address_purpose": "LOCATION",
            "city": "Ann Arbor",
            "state": "MI",
            "postal_code": "481094286",
            "country_code": "US",
            "telephone_number": "734-764-5302",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHERNIAK",
        "first_name": "COURTNEY",
        "middle_name": "ELIZABETH",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-12-11",
        "last_updated": "2025-05-20",
        "certification_date": "2025-05-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0222X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Pediatrics, Critical Care",
            "state": "MI",
            "license": "4704280733",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MI",
            "license": "4704280733",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CA",
            "license": "95023187",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "COURTNEY",
            "last_name": "CHERNIAK",
            "credential": "CPNP-AC",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Peter Cheng, M.D.
• Walter Cheng, MD
• William Ming Cheng, MD
• Victoria Wong Cheong, OT
• Erika Cherk
• Chrisoula Cheronis, MD
• Andrew Cheshire, DMD
• Tracy Chesler, LCSW
• Taylor B Chesney, PSY.D
• Charena Chetchavat, PT, DPT

• Nurse Practitioner in Palo Alto, CA
• Providers in Palo Alto, CA by specialty
• Nurse Practitioner in California

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