Stephen Craig Williams, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

16501 Issued in CA

Practice address

Naval Hospital Camp Pendleton
BLD H-100
Camp Pendleton, CA 92055-5191

Phone

(760) 725-7200

NPI assigned

Dec 1, 2005

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Male

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mountain Valleys Health CentersGroup PAC ID 4284685538, 33 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mayers Memorial Hospital Hospital, Fall River Mills, CA, CCN 051305

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: swilliams678594@direct.ochin.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Mountain Valleys Health Centers

  dba Big Valley Health Center

  • Federally Qualified Health Center (FQHC)
  • Bieber, CA
  • NPI 1356438261
  Medicare reassignment Care Compare group NPD (past)
• Stanford Health Care

  dba Stanford Medical Center A Trade Name for Stanford Health Care

  • General Acute Care Hospital
  • Stanford, CA
  • NPI 1437292927
  Medicare reassignment
• University Healthcare Alliance

  • Internal Medicine Physician
  • Newark, CA
  • NPI 1760531198
  Medicare reassignment
• Mayers Memorial Hospital District

  • Critical Access Hospital
  • Fall River Mills, CA
  • NPI 1912125667
  NPD
• Mountain Valleys Health Centers

  dba Mount Shasta Alternative Health Center

  • Federally Qualified Health Center (FQHC)
  • Mount Shasta, CA
  • NPI 1588470025
  NPD
• Stanford Health Care

  dba Stanford Health Care Specialty Pharmacy

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

  dba Scripps Medical Foundation

  • Family Medicine Physician
  • Vista, CA
  • NPI 1861477846
  NPD (past)
• Stanford Hospital and Clinics

  dba SHC Reference Laboratory

  • Clinical Medical Laboratory
  • Palo Alto, CA
  • NPI 1174698468
  NPD (past)

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

• Mayers Memorial Hospital District

  • Critical Access Hospital
  • Fall River Mills, CA
  • NPI 1912125667
  Care Compare affiliation

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

{
    "created_epoch": "1133395200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1477537736",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "NAVAL HOSPITAL CAMP PENDLETON",
            "address_2": "BLD H-100",
            "city": "CAMP PENDLETON",
            "state": "CA",
            "postal_code": "920555191",
            "telephone_number": "760-725-7200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "NAVAL HOSPITAL CAMP PENDLETON",
            "address_2": "BLD H-100",
            "city": "CAMP PENDLETON",
            "state": "CA",
            "postal_code": "920555191",
            "telephone_number": "760-725-7200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "STEPHEN",
        "middle_name": "CRAIG",
        "name_prefix": "Mr.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "16501",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tommy Bernard White, DMD
• Trina Whiting, REGISTERED NURSE
• Lisa C Whitney, LCSW
• Russell P. Wier, D.O.
• Matthew Clifford Willett, M.D.
• Virginia Santiago Williams, PROPHY TECH
• John Williamson, MD
• Emanuel Vance Willis, DMD
• Brandon James Wilmot, PA-C
• Justin Andrew Wilson, SOIDC

• Physician Assistant in Camp Pendleton, CA
• Providers in Camp Pendleton, 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 13, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.