William Kenneth Winter, M.D.

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

A157635 Issued in CA

Practice address

757 Westwood PLZ Ste 7501
Los Angeles, CA 90095-1003

Phone

(310) 267-9643

NPI assigned

Mar 27, 2017

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in CA, FL2 enrollments

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 2

Specialty

HospitalistAlso: Internal Medicine

Education

Tufts University School of Medicine, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

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

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Merit-based Incentive Payment System (MIPS)

Final score

87.93 of 100Reported as group

Quality

78.79

Promoting interoperability

100

Improvement activities

40

Cost

71.44

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wwinter805896@direct.uclahealth.org
• Direct secure messaging: wwinter127255@direct.med.miami.edu

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.

• The Regents of the University of California

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1235107566
  Medicare reassignment Care Compare group
• University of Miami

  • Hepatology Physician
  • Miami, FL
  • NPI 1013967827
  Medicare reassignment NPD
• University of Miami

  • Internal Medicine Physician
  • Miami Beach, FL
  • NPI 1124768627
  NPD
• University of Miami

  • Internal Medicine Physician
  • Miami, FL
  • NPI 1619927423
  NPD
• Regents Univ of Calif Los Angeles

  • Psychiatric Hospital
  • Los Angeles, CA
  • NPI 1952308363
  NPD (past)
• The Regents of the University of California

  • General Acute Care Hospital
  • Santa Monica, CA
  • NPI 1982849105
  NPD (past)
• UCLA Medical Group

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1043427248
  NPD (past)
• QMC LLC

  • Hospitalist Physician
  • Miami, FL
  • NPI 1003216391
  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": "1490572800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748822400000",
    "number": "1437680725",
    "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",
            "telephone_number": "310-301-5200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "757 WESTWOOD PLZ STE 7501",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900951003",
            "telephone_number": "310-267-9643"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1400 NW 12th Ave",
            "address_purpose": "LOCATION",
            "city": "Miami",
            "state": "FL",
            "postal_code": "331361003",
            "country_code": "US",
            "telephone_number": "305-689-5511",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WINTER",
        "first_name": "WILLIAM",
        "middle_name": "KENNETH",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-03-27",
        "last_updated": "2025-06-02",
        "certification_date": "2025-06-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A157635",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "A157635",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "FL",
            "license": "ME163163",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Laurie Winston
• Marchae Winston
• Kara Lee Winter, PH.D.
• Matthew Wayne Winter, MD
• Meredith Chan Winter, M.D.
• Emily Winters-Dixon
• Lena Rose Winters
• Robert Edward Winters, MD
• Alice Winther, PH.D
• Silvi Winthrop, MA

• Hospitalist Physician in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Hospitalist Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 2, 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.