William R. Gillock, M.D.
Occupational Medicine Physician · Tulsa, OK
William R. Gillock, M.D. is an occupational medicine physician with a practice address in Tulsa, Oklahoma, and NPI 1659427391, issued on Jan 26, 2007. Check the license (Oklahoma 12966, 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. Gillock
- Credential
- M.D.
- Primary taxonomy
- Occupational Medicine Physician 2083X0100X
- License number
- 12966 OK
Self-reported in NPPES; status is on the state search - Practice location
- 7170 S Braden Ave, Tulsa, OK 74136
- Phone
- (918) 481-0994
- Enumerated
- Jan 26, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (918) 494-6747
- Entity
- Type 1 · individual
8 nearest occupational medicine physician records → All 28 in Oklahoma → Look up another NPI →
Also registered at 7170 S Braden Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tori LunsfordBehavior Technician1679121214
Verify William R. Gillock 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 12966Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average occupational medicine physician in 2024
13 Medicare Part D claims, against an average of 794 among the 463 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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. Gillock among 28 occupational medicine physician records in Oklahoma
William R. Gillock, M.D. is one of 28 occupational medicine physician records with a practice address in Oklahoma. 36% 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 39% of them.
- NPI issued2007 · 39% of these records are older, 18% newer
- In a Medicare fileYes · 36% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2007 · 82% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Occupational Medicine Physician providers in Oklahoma
There are 28 occupational medicine physician records in Oklahoma.
All 28 in Oklahoma → Every provider in Tulsa → Occupational Medicine Physician nationwide →
The 8 occupational medicine physician records with the nearest ZIP codes
- Terry Wagner, M.D.Tulsa, OK 741451134247802
- Lee Schafer, COTATulsa, OK 741261629494000
- Gregory Mitchell, MDTulsa, OK 741151922137926
- Christian Nielsen, D.O.Tulsa, OK 741151932227691
- Karen Smallwood Ryan, M.D.Tulsa, OK 741121437134657
- John Hallford, M.D.Tulsa, OK 741071366560104
- Tiari Harris, MD MPHTulsa, OK 741041548383003
- William Parsons, MDBartlesville, OK 740041730204975
Common questions
What is William R. Gillock, M.D.'s NPI number?
William R. Gillock, M.D.'s National Provider Identifier (NPI) is 1659427391, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William R. Gillock, M.D. located?
The NPPES record lists a practice address at 7170 S Braden Ave, Tulsa, OK, 74136. Phone: (918) 481-0994. Providers update this record themselves, so call before visiting.
How can I verify William R. Gillock, M.D.'s license?
NPPES lists Oklahoma license number 12966, 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. Gillock, M.D. prescribe under Medicare Part D?
In 2024, William R. Gillock, M.D. had 13 Medicare Part D claims; the average among occupational medicine physician prescribers was 794. 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.