William R. Grubb, MD
Internal Medicine Physician · Tulsa, OK
William R. Grubb, MD is an internal medicine physician with a practice address in Tulsa, Oklahoma, and NPI 1164582375, issued on Dec 11, 2006. Check the license (Oklahoma 10720, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- William R. Grubb
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 10720 OK
Self-reported in NPPES; status is on the state search - Practice location
- 1919 S Wheeling Ave Ste 710, Tulsa, OK 74104
- Phone
- (918) 756-7110
- Enumerated
- Dec 11, 2006
- Record last updated
- Mar 6, 2025
- Fax
- (918) 742-7332
- Medicare enrollment
- Enrolled (PECOS I20101117000824); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 1974
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Verify William R. Grubb in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 10720Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% more Medicare Part D claims than the average internal medicine physician in 2024
4,804 Medicare Part D claims for 286 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 90 claims were for opioids.
Most prescribed
- Atorvastatin Calcium304 claims
- Amlodipine Besylate227 claims
- Lisinopril145 claims
- Levothyroxine Sodium142 claims
- Gabapentin118 claims
- Metformin Hcl113 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.
William R. Grubb among 1,115 internal medicine physician records in Oklahoma
William R. Grubb, MD is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 57% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1974 · median 2007 among the 653 with a school on file
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
307 internal medicine physician records list a practice address in Tulsa
They are 307 of the 18,643 NPPES records with a practice address in Tulsa, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Tulsa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Cossman, M.D.Tulsa, OK 741041184627325
- Jon Cox, M.D.Tulsa, OK 741041114996741
- Janis Finer, M.D.Tulsa, OK 741041326017328
- Christine Franden, M.D.Tulsa, OK 741041669459160
- Linda Goldenstern, M.D.Tulsa, OK 741041205805835
- Andrew Gordon, M.D.Tulsa, OK 741041447228549
- Paul Hendrix, M.D.Tulsa, OK 741041306848692
- Erick Hill, M.D.Tulsa, OK 741041508835281
Common questions
What is William R. Grubb, MD's NPI number?
William R. Grubb, MD's National Provider Identifier (NPI) is 1164582375, issued on Dec 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William R. Grubb, MD located?
The NPPES record lists a practice address at 1919 S Wheeling Ave Ste 710, Tulsa, OK, 74104. Phone: (918) 756-7110. Providers update this record themselves, so call before visiting.
How can I verify William R. Grubb, MD's license?
NPPES lists Oklahoma license number 10720, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William R. Grubb, MD prescribe under Medicare Part D?
In 2024, William R. Grubb, MD had 4,804 Medicare Part D claims for 286 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.