NPPES file of Aug 9, 2026

Gastroenterology Physician in Oklahoma

160 NPPES records list gastroenterology physician with a practice address in Oklahoma, 3.9 per 100,000 residents, the 44th highest rate of 51. Oklahoma City and Tulsa have the most; each record links to the provider's NPI and the Oklahoma license search. Page 4 of 4.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RG0100X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Oklahoma City has the most, 76

  1. Oklahoma City76
  2. Tulsa51
  3. Enid6
  4. Edmond5
  5. Norman5

Gastroenterology Physician records in Oklahoma

  1. Clinton Wallis, M.D.Oklahoma City, OK 731161255384483
  2. Kelly Walls, RNEdmond, OK 730341174472658
  3. Michael Warren, DOTulsa, OK 741361568963551
  4. Joshua Whorton, MDNorman, OK 730711346381969
  5. Robert Wilson, M.D.Oklahoma City, OK 731091306821780
  6. Michael Winters, M.D.Oklahoma City, OK 731121902880719
  7. Leon Yoder, DOWagoner, OK 744671285621482
  8. Bryce Yohannan, MDOklahoma City, OK 731041558851220
  9. Imad Zantout, M.D.Oklahoma City, OK 731201083709430
  10. Joe Zuerker, M.D.Oklahoma City, OK 731201780693309

Source: CMS NPPES, primary taxonomy 207RG0100X: records by practice city and the list of records, file of Aug 9, 2026.

Oklahoma ranks 44 of 51 per resident

  1. Mississippi4.4
  2. Idaho4.2
  3. North Dakota4.1
  4. Oklahoma3.9
  5. Montana3.9
  6. Arkansas3.9
  7. 50 states and D.C.6.2

Source: CMS NPPES, primary taxonomy 207RG0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

80.6% of these records appear in a Medicare file, against 84.4% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Oklahoma80.6%
  2. United States84.4%

Gastroenterology Physician records in Oklahoma, measured

  • In a Medicare file129 of 160 · 80.6% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file106 · 66.3% here, 73.7% nationally
  • Not updated in five years or more104 · 65.0% here, 55.6% nationally
  • Median graduation year2000 · the 106 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RG0100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

160 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in Oklahoma: 3.9 per 100,000 residents against 6.2 nationally (50 states and D.C.). Oklahoma City has 76 of them (48%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Utah149
  2. Mississippi128
  3. Iowa122
  4. Arkansas119

States with a similar rate per 100,000

  1. Montana3.9
  2. North Dakota4.1
  3. Kansas3.8
  4. Nevada3.7

The largest states

  1. California2,140
  2. New York1,797
  3. Florida1,513
  4. Texas1,478
  5. Pennsylvania1,049

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.