Grant P. Williams, M.D.
Interventional Pain Medicine Physician · Glendale, CA
Grant P. Williams, M.D. is an interventional pain medicine physician with a practice address in Glendale, California, and NPI 1013055128, issued on Feb 1, 2007. Check the license (California A54235, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Grant P. Williams
- Credential
- M.D.
- Primary taxonomy
- Interventional Pain Medicine Physician 208VP0014X
- License number
- A54235 CA
Self-reported in NPPES; status is on the state search - Practice location
- 706 W Broadway Ste 202, Glendale, CA 91204
- Phone
- (877) 331-3878
- Enumerated
- Feb 1, 2007
- Record last updated
- Jun 20, 2025
- Medicare enrollment
- Enrolled (PECOS I20051026000629); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest interventional pain medicine physician records → All 219 in California → Look up another NPI →
Verify Grant P. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A54235Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% more Medicare Part D claims than the average interventional pain medicine physician in 2024
2,513 Medicare Part D claims for 119 beneficiaries, against an average of 2,306 among the 2,100 providers of this specialty who prescribed in Part D. 717 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen300 claims
- Gabapentin185 claims
- Diclofenac Sodium179 claims
- Diclofenac Potassium171 claims
- Oxycodone Hcl155 claims
- Oxycodone-Acetaminophen138 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $16.76
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 1,966 providers of this specialty with any payment received $3,889.53 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Grant P. Williams among 219 interventional pain medicine physician records in California
Grant P. Williams, M.D. is one of 219 interventional pain medicine physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 42% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1991 · median 2003 among the 167 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208VP0014X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Pain Medicine Physician providers in California
There are 219 interventional pain medicine physician records in California.
All 219 in California → Every provider in Glendale → Interventional Pain Medicine Physician nationwide →
The 8 interventional pain medicine physician records with the nearest ZIP codes
- Christopher Kaypekian, M.D.Glendale, CA 912041184746380
- Maxim Moradian, M.D.Glendale, CA 912041497924864
- Yashar GhomriGlendale, CA 912051861717704
- Christopher Charbonnet, M.D.Glendale, CA 912061225049968
- Laszlo Galffy, M.D.Glendale, CA 912061659398568
- Hilary Fausett, MDPasadena, CA 911051861468134
- Chau Vu, MDPasadena, CA 911051538508841
- Paul Johnson, M.D.West Hills, CA 913071750449229
Common questions
What is Grant P. Williams, M.D.'s NPI number?
Grant P. Williams, M.D.'s National Provider Identifier (NPI) is 1013055128, issued on Feb 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Grant P. Williams, M.D. located?
The NPPES record lists a practice address at 706 W Broadway Ste 202, Glendale, CA, 91204. Phone: (877) 331-3878. Providers update this record themselves, so call before visiting.
How can I verify Grant P. Williams, M.D.'s license?
NPPES lists California license number A54235, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Grant P. Williams, M.D. prescribe under Medicare Part D?
In 2024, Grant P. Williams, M.D. had 2,513 Medicare Part D claims for 119 beneficiaries; the average among interventional pain medicine physician prescribers was 2,306. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.