Individual Healthcare Provider
Grant P. Williams, M.D.
Provider's NPPES record last updated: August 19, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1013055128
- Primary Specialty
- Pain Medicine — Interventional Pain Medicine
- Practice Location
- Glendale, California
- Sole Proprietor
- Yes
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 17, 2026, 11:47 PM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Pain Medicine
Interventional Pain Medicine
Allopathic & Osteopathic Physicians
Interventional Pain Medicine is the discipline of medicine devoted to the diagnosis and treatment of pain and related disorders principally with the application of interventional techniques in managing subacute, chronic, persistent, and intractable pain, independently or in conjunction with other modalities of treatment.
Taxonomy code 208VP0014X
Provider-Reported License Information
- Pain Medicine (California)
- A54235
Practice Locations
Practice Location
716 W Broadway Ste 200
Glendale, California 91204-1010
Phone: (877) 331-3878
Additional Practice Location
1250 S Sunset Ave Ste 206
West Covina, California 91790-3962
Phone: (877) 331-3878
Fax: (888) 578-6188
Record Information
- Enumeration Date
- February 1, 2007
- Provider's NPPES Record Last Updated
- August 19, 2026
- Certification Date
- August 19, 2026
- NPISignal NPPES Dataset
- August 2026
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