Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Neil Patrick Williams, MD

Individual provider Internal Medicine Physician · NPI 1174141253

Neil Patrick Williams, MD is a Hospitalist in Los Angeles, California. Qualified in 2020, 6 years ago. Practices with The Regents of the University of California, a 1,414-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
6
Licensed in
CA
In the registry since
2020
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

757 Westwood Plz Ste 7501
Los Angeles, CA 90095-3625
Phone: (310) 267-9643
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 225 Williamson St, Elizabeth, NJ 07202-3625 — (908) 994-5000

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A198609 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence D9394722 (CA)

Record details

NPI number1174141253
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 6, 2020
Last updated in NPPESJuly 3, 2025
Certification dateJuly 3, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice The Regents Of The University Of California — 1414 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients215
Services billed 263 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at The Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1414 clinicians in the practice; 12 are shown here.

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