William G Ayoub Jr., PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA66058 Issued in CA

Practice address

5 Hutton Centre Dr Ste 950
Santa Ana, CA 92707-8744

Phone

(855) 434-7763

NPI assigned

Feb 28, 2025

Last updated

Aug 12, 2025By 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, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Beaver Medical Group P CGroup PAC ID 0547164295, 251 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Bella Terra Home Health Home health agency, Palm Desert, CA, CCN 057252

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Beaver Medical Group P C

  dba Optum

  • Family Medicine Physician
  • Redlands, CA
  • NPI 1649503319
  Medicare reassignment Care Compare group
• Cep America - California

  dba Vituity

  • Emergency Medicine Physician
  • San Francisco, CA
  • NPI 1023063542
  Medicare reassignment
• Healthcare Partners Affiliates Medical Group

  dba Optum

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1659312593
  Medicare reassignment
• Senior Doc Integrated Med, PC

  • Family Medicine Physician
  • Santa Ana, CA
  • NPI 1396526026
  Medicare reassignment
• Cep America - California

  dba Vituity

  • Emergency Medicine Physician
  • Moreno Valley, CA
  • NPI 1215042338
  NPD
• Cep America-California

  • Emergency Medicine Physician
  • Murrieta, CA
  • NPI 1588552848
  NPD

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

• Joshua Tree Healthcare, Inc.

  dba Bella Terra Home Health

  • Home Health Agency
  • Palm Desert, CA
  • NPI 1063828234
  Care Compare affiliation

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

{
    "created_epoch": "1740700800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754956800000",
    "number": "1619774304",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5 HUTTON CENTRE DR STE 950",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927078744",
            "telephone_number": "855-434-7763"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5 HUTTON CENTRE DR STE 950",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927078744",
            "telephone_number": "855-434-7763"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "AYOUB",
        "first_name": "WILLIAM",
        "middle_name": "G",
        "name_suffix": "Jr.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-02-28",
        "last_updated": "2025-08-12",
        "certification_date": "2025-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA66058",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Elizabeth Ayllon
• Mariella Isabel Ayllon
• Bryan Ayon
• Cynthia Ayorinde
• Danny Walid Ayoub, D.O.
• Alicia Ayres
• Christina Ayres
• Alisha Ayub
• Az Dental Smile Amro Albaghdadi
• Nancy Azadian, PH.D. LA.C. DNBAO

• Physician Assistant in Santa Ana, CA
• Providers in Santa Ana, CA by specialty
• Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 12, 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.
• 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.