Quick answers
- Which hospitals does William K. Winter work at?
- Medicare's official clinician data lists William K. Winter at 2 hospitals: Ronald Reagan UCLA Medical Center and Santa Monica - UCLA Med Ctr & Orthopaedic Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William K. Winter see patients?
- Medicare's clinician data lists 3 practice locations, including Santa Monica, CA and Los Angeles, CA. Call before your visit to confirm the address.
- What is William K. Winter's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does William K. Winter accept Medicare assignment?
- Yes. Medicare's clinician data says William K. Winter accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for William K. Winter?
- (310) 458-2381, as listed in official Medicare / NPI Registry data.
- What is William K. Winter's NPI number?
- 1437680725. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William K. Winter works
Medicare's Facility Affiliation Data lists William K. Winter at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050262
- Santa Monica - UCLA Med Ctr & Orthopaedic HospitalSanta Monica, CA · Acute Care Hospital · CCN 050112
Practice locations
Addresses where William K. Winter is enrolled with Medicare (CMS data updated 2026-10-02).
- 2020 Santa Monica Blvd, Suite 210Santa Monica, CA 90404 (310) 458‑2381
- 757 Westwood PlzLos Angeles, CA 90095 (310) 267‑9643
- 757 Westwood Plz, Suite 7501Los Angeles, CA 90095 (310) 267‑9643
Group practices
Medicare enrollment lists William K. Winter as a member of this group (CMS data updated 2026-10-02).
- The Regents of the University of California1,462 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Santa Monica
Clinicians with the same Medicare primary specialty in Santa Monica, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437680725 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians