William Carroll

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A155343 Issued in CA

Practice address

200 UCLA Medical PLZ Ste 420
Los Angeles, CA 90095

Phone

(310) 206-6232

Fax

(310) 206-3551

NPI assigned

Apr 8, 2014

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal Medicine

Education

Other, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

The Regents of the University of CaliforniaGroup PAC ID 1355248584, 1,426 clinicians

Regents of the University of California Los AngelesGroup PAC ID 4587857727, 84 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ronald Reagan UCLA Medical Center Hospital, Los Angeles, CA, CCN 050262
• Santa Monica - UCLA Med Ctr & Orthopaedic Hospital Hospital, Santa Monica, CA, CCN 050112

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wcarroll630655@direct.uclahealth.org

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.

• Regents of the University of California Los Angeles

  • Neurology Physician
  • Los Angeles, CA
  • NPI 1609194497
  Medicare reassignment Care Compare group NPD
• The Regents of the University of California

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1235107566
  Medicare reassignment Care Compare group NPD
• The Regents of the University of California

  • Ambulatory Surgical Clinic/Center
  • Valencia, CA
  • NPI 1689200305
  NPD
• UCLA Medical Group

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1043427248
  NPD (past)
• University Hospital at Stony Brook

  • General Acute Care Hospital
  • Greenport, NY
  • NPI 1881690691
  NPD (past)

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

• Regents of the Univ of California

  • General Acute Care Hospital
  • Santa Monica, CA
  • NPI 1427055839
  Care Compare affiliation
• Regents Univ of Calif Los Angeles

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1902803315
  Care Compare affiliation

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

{
    "created_epoch": "1396915200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762732800000",
    "number": "1295154102",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5767 W CENTURY BLVD STE 400",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900455631"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 UCLA MEDICAL PLZ STE 420",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "90095",
            "telephone_number": "310-206-6232",
            "fax_number": "310-206-3551"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1920 Colorado Ave",
            "address_purpose": "LOCATION",
            "city": "Santa Monica",
            "state": "CA",
            "postal_code": "904043414",
            "country_code": "US",
            "telephone_number": "310-526-4812",
            "fax_number": "310-622-9598",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CARROLL",
        "first_name": "WILLIAM",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-04-08",
        "last_updated": "2025-11-10",
        "certification_date": "2025-11-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A155343",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Nicole Ryan Carroll
• Robert Morton Carroll X, MD
• Robert Steven Carroll, MD
• Shari Hope Carroll, DMD, MPH
• Thaddeus Cornelius Carroll
• Xavier Carroll
• Jamie Lauren Carruth, LMFT
• Keshae Carruthers
• Carson D Liu, MD, Medcorp
• Danielle Carson, DC

• Internal Medicine Physician in Los Angeles, CA
• Providers in Los Angeles, 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 Nov 10, 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.