Gregory J. Dennis, DO
Family Medicine Physician · Yukon, OK
Gregory J. Dennis, DO is a family medicine physician with a practice address in Yukon, Oklahoma, and NPI 1508976051, issued on Aug 30, 2006. Check the license (Oklahoma 4513, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Gregory J. Dennis
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 4513 OK
Self-reported in NPPES; status is on the state search - Practice location
- 520 S Mustang RD, Yukon, OK 73099
- Phone
- (405) 936-5910
- Enumerated
- Aug 30, 2006
- Record last updated
- Apr 28, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (405) 577-2605
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,303 in Oklahoma → Look up another NPI →
Also registered at 520 S Mustang RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katrina Bates, APRNFamily Nurse Practitioner1497399661
- Mariela Bernal Irizarry, M.D.Family Medicine Physician1447690946
- Sarah BoedeckerFamily Nurse Practitioner1053245431
- John Bundy, M.D.Family Medicine Physician1821027210
- Alena Costulas, PAPhysician Assistant1851008460
- Lydia Dennis, DOFamily Medicine Physician1083724546
Verify Gregory J. Dennis 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 4513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
166 Medicare Part D claims for 38 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen13 claims
- Gabapentin11 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.
Gregory J. Dennis among 2,303 family medicine physician records in Oklahoma
Gregory J. Dennis, DO is one of 2,303 family medicine physician records with a practice address in Oklahoma. 79% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2014 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
44 family medicine physician records list a practice address in Yukon
They are 44 of the 1,197 NPPES records with a practice address in Yukon, and 2,303 family medicine physician records in Oklahoma.
All 2,303 in Oklahoma → Every provider in Yukon → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Curtis Ball, DOYukon, OK 730991619956943
- Catrina Bourne, M.D.Yukon, OK 730991174562763
- Curtis Brown, M.D.Yukon, OK 730991467469288
- John Bundy, M.D.Yukon, OK 730991821027210
- Athena Friese, M.D.Yukon, OK 730991487600086
- Tanya Livingston, M.D.Yukon, OK 730991316986854
- Robert Lockwood, MDYukon, OK 730991265488829
- Mark Mann, M.D.Yukon, OK 730991184649584
Common questions
What is Gregory J. Dennis, DO's NPI number?
Gregory J. Dennis, DO's National Provider Identifier (NPI) is 1508976051, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Dennis, DO located?
The NPPES record lists a practice address at 520 S Mustang RD, Yukon, OK, 73099. Phone: (405) 936-5910. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Dennis, DO's license?
NPPES lists Oklahoma license number 4513, 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 Gregory J. Dennis, DO prescribe under Medicare Part D?
In 2024, Gregory J. Dennis, DO had 166 Medicare Part D claims for 38 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.