Geoffrey Alan Fillmore, D.O.
Gastroenterology Physician · Tulsa, OK
Geoffrey Alan Fillmore, D.O. is a gastroenterology physician with a practice address in Tulsa, Oklahoma, and NPI 1013022680, issued on Aug 21, 2006. Check the license (Oklahoma 4981, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Geoffrey Alan Fillmore
- Credential
- D.O.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 4981 OK
M3541 TX
Self-reported in NPPES; status is on the state search - Practice location
- 10210 E 91St St, Tulsa, OK 74133
- Phone
- (918) 940-8500
- Enumerated
- Aug 21, 2006
- Record last updated
- Apr 28, 2022
- Fax
- (918) 940-8399
- Medicare enrollment
- Enrolled (PECOS I20110831000406); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 160 in Oklahoma → Look up another NPI →
Also registered at 10210 E 91St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alison Anderson, C.R.N.A.Certified Registered Nurse Anesthetist1497176895
- Zena Barkat, RDN/LDRegistered Dietitian1295287506
- Sheldon Berger, D.O.Gastroenterology Physician1114982089
- Jeffrey Bigler, M.D.Gastroenterology Physician1164419362
- William Briggs, M.D.Gastroenterology Physician1730176884
- Mary ChelfFamily Nurse Practitioner1821617077
Verify Geoffrey Alan Fillmore 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 4981Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% more Medicare Part D claims than the average gastroenterology physician in 2024
868 Medicare Part D claims for 396 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Pantoprazole Sodium163 claims
- Omeprazole89 claims
- Colestipol Hcl66 claims
- Sod Sulf-Potass Sulf-Mag Sulf62 claims
- Clenpiq58 claims
- Mesalamine47 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $724.04
39 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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.
Bills Medicare through one group practice
- Gastroenterology Specialists, Inc.Tulsa, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Geoffrey Alan Fillmore among 160 gastroenterology physician records in Oklahoma
Geoffrey Alan Fillmore, D.O. is one of 160 gastroenterology physician records with a practice address in Oklahoma. 81% 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 31% of them.
- NPI issued2006 · 31% of these records are older, 38% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2004 · median 2000 among the 106 with a school on file
- Record last updated2022 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Oklahoma
There are 160 gastroenterology physician records in Oklahoma.
All 160 in Oklahoma → Every provider in Tulsa → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Amer Alkhatib, MDTulsa, OK 741331487740296
- Sheldon Berger, D.O.Tulsa, OK 741331114982089
- Jeffrey Bigler, M.D.Tulsa, OK 741331164419362
- Matt Blankenship, M.D.Tulsa, OK 741331902950165
- Jeffery Blonsky, M.D.Tulsa, OK 741331609896596
- William Briggs, M.D.Tulsa, OK 741331730176884
- Brandon Conkling, D.O.Tulsa, OK 741331134273378
- Eric Cottrill, M.D.Tulsa, OK 741331659368850
Common questions
What is Geoffrey Alan Fillmore, D.O.'s NPI number?
Geoffrey Alan Fillmore, D.O.'s National Provider Identifier (NPI) is 1013022680, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Geoffrey Alan Fillmore, D.O. located?
The NPPES record lists a practice address at 10210 E 91St St, Tulsa, OK, 74133. Phone: (918) 940-8500. Providers update this record themselves, so call before visiting.
How can I verify Geoffrey Alan Fillmore, D.O.'s license?
NPPES lists Oklahoma license number 4981, 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 Geoffrey Alan Fillmore, D.O. prescribe under Medicare Part D?
In 2024, Geoffrey Alan Fillmore, D.O. had 868 Medicare Part D claims for 396 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Geoffrey Alan Fillmore, D.O.'s MIPS final score?
The 2023 MIPS final score is 76.3 of 100, reported for the practice group. 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.