Individual provider Active NPI

Juliet Fong, PA-C

  • Physician Assistant
  • Castro Valley, CA
National Provider Identifier
1639968670
Registry record updated Dec 15, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
66911 Issued in CA
Practice address
20055 Lake Chabot Rd Ste 130
Castro Valley, CA 94546-5332
Phone
(833) 444-7622
NPI assigned
May 5, 2025
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 15, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 66911 CA Primary

Addresses

Primary practice location

20055 Lake Chabot Rd Ste 130
Castro Valley, CA 94546-5332

Mailing address

20055 Lake Chabot Rd Ste 130
Castro Valley, CA 94546-5332
Phone (510) 888-0657

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20251118004698 CA Practitioner - Physician Assistant 0143711028 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
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
  • Eden Medical Center Hospital, Castro Valley, CA, CCN 050488
  • Stanford Health Care Tri-Valley Hospital, Pleasanton, CA, CCN 050283

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
66911CAMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Stanford Health Care CurrentSince Oct 22, 2025 Accepting new patients
University Healthcare Alliance CurrentSince Oct 22, 2025 Accepting new patients
Stanford Health Care CurrentSince Oct 22, 2025 Accepting new patients

Locations

50 E Hamilton Ave
Ste 280
Campbell, CA 95008
Phone (408) 227-2646

20055 Lake Chabot Rd
Ste 130
Castro Valley, CA 94546
Phone (510) 888-0657

1300 Crane St
Menlo Park, CA 94025
Phone (510) 785-5000

4725 1st St
Ste 100
Pleasanton, CA 94566
Phone (925) 462-7060

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

Organizations & group practices 3

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 9

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": "1746403200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765756800000",
    "number": "1639968670",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20055 LAKE CHABOT RD STE 130",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945465332",
            "telephone_number": "510-888-0657"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20055 LAKE CHABOT RD STE 130",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945465332",
            "telephone_number": "833-444-7622"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FONG",
        "first_name": "JULIET",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-05-05",
        "last_updated": "2025-12-15",
        "certification_date": "2025-12-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "66911",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Castro Valley, CA

Sources for this page

Verify at the official NPI Registry.