Gary Fennema, D.O.
Emergency Medicine Physician · Tulsa, OK
Gary Fennema, D.O. is an emergency medicine physician with a practice address in Tulsa, Oklahoma, and NPI 1578003992, issued on Mar 4, 2017. Check the license (Oklahoma 6402, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Gary Fennema
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 6402 OK
Self-reported in NPPES; status is on the state search - Practice location
- 744 W 9TH St, Tulsa, OK 74127
- Phone
- (918) 599-1000
- Enumerated
- Mar 4, 2017
- Record last updated
- Dec 17, 2022
- Medicare enrollment
- Enrolled (PECOS I20191119003044); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 2017
- Entity
- Type 1 · individual
Also registered at 744 W 9TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bobby Abernathy, D.O.Emergency Medicine Physician1114289659
- Sheeba AgaStudent in an Organized Health Care Education/Training Program1386211373
- Christina Albrecht, LCSWClinical Social Worker1629490099
- David Alcorn, DOInternal Medicine Physician1063952562
- Katherine Andrews, DOStudent in an Organized Health Care Education/Training Program1952104127
- Kenneth Argo, D.O.Emergency Medicine Physician1477965689
Verify Gary Fennema 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 6402Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average emergency medicine physician in 2024
144 Medicare Part D claims for 103 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin16 claims
- Doxycycline Hyclate16 claims
- Ondansetron Odt13 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.
The MIPS final score for 2023 (Medicare payment program): 91.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Northeastern Health SystemTahlequah, OK · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
264 emergency medicine physician records list a practice address in Tulsa
They are 264 of the 18,643 NPPES records with a practice address in Tulsa, and 748 emergency medicine physician records in Oklahoma.
All 264 in Tulsa → All 748 in Oklahoma → Every provider in Tulsa →
Other emergency medicine physician records in Oklahoma
- David Abercrombie, MDOklahoma City, OK1023135506
- Bobby Abernathy, D.O.Tulsa, OK1114289659
- Ryan Acker, DOTulsa, OK1659949303
- Tyler Adams, D.O.Lawton, OK1538542170
- Tolulope Adepoju, MDNorman, OK1891425054
- Tinuola AgbabiakaOklahoma City, OK1790097459
- Kelechi Agu, MDTulsa, OK1831686526
- Azeemuddin Ahmed, MDOklahoma City, OK1609850148
- Noor Ahmed, DOTulsa, OK1679102446
- David AlexanderOklahoma City, OK1003418559
Common questions
What is Gary Fennema, D.O.'s NPI number?
Gary Fennema, D.O.'s National Provider Identifier (NPI) is 1578003992, issued on Mar 4, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Gary Fennema, D.O. located?
The NPPES record lists a practice address at 744 W 9TH St, Tulsa, OK, 74127. Phone: (918) 599-1000. Providers update this record themselves, so call before visiting.
How can I verify Gary Fennema, D.O.'s license?
NPPES lists Oklahoma license number 6402, 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 Gary Fennema, D.O. prescribe under Medicare Part D?
In 2024, Gary Fennema, D.O. had 144 Medicare Part D claims for 103 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Gary Fennema, D.O.'s MIPS final score?
The 2023 MIPS final score is 91.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.