NPPES file of Aug 9, 2026

Internal Medicine Physician in Oklahoma

1,115 NPPES records list internal medicine physician with a practice address in Oklahoma, 28 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 8 of 23.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 418

  1. Oklahoma City418
  2. Tulsa307
  3. Norman28
  4. Ada25
  5. Lawton24

Internal Medicine Physician records in Oklahoma

  1. Richard Greyson, MDOklahoma City, OK 731061356355770
  2. Karen Gribbin, M.D.Muskogee, OK 744011245251693
  3. Zachary Griffin, DOTulsa, OK 741271922685049
  4. William Grubb, MDTulsa, OK 741041164582375
  5. Rebecca Gupton, DOOklahoma City, OK 731201922469436
  6. Kristina GurianOklahoma City, OK 731041104447473
  7. Quyen Ha, M.D.Ada, OK 748201245383264
  8. Frances Haas, DOTulsa, OK 741361407826860
  9. Jeffrey Habel, D.O.Oklahoma City, OK 731041639912843
  10. Phillip Haddad, M.D.Shawnee, OK 748041326087818
  11. Ehab Hady, MDTulsa, OK 741041164186383
  12. Mallory Hall, DOTulsa, OK 741351528528411
  13. Allen Hamaker, MDOkc, OK 731121326028663
  14. Joe Hamill, M.D.Ardmore, OK 734011326059734
  15. Abigail Hamm, MDOklahoma City, OK 731041699396002
  16. Shanna Hampton, DOTulsa, OK 741041285899872
  17. Kylie HandaOklahoma City, OK 731041558105973
  18. Taryn Haney, DO, MPH, AAHIVSTulsa, OK 741361508447533
  19. James Hanlon, MDOwasso, OK 740551336256577
  20. Phyllis Hannah, M.D.Ada, OK 748201740259407
  21. Glenn Haraway, DOTulsa, OK 741361679679062
  22. Joshua HardageOklahoma City, OK 731041215506340
  23. Jacob Harder, MDOklahoma City, OK 731041316730625
  24. Teresa Hardesty, D.O.Tulsa, OK 741361528446804
  25. Stacy Hardy, MDMcAlester, OK 745011396708517
  26. Jourdan Harkless, DOOklahoma City, OK 731041194384990
  27. Audrey Harris, DOTulsa, OK 741041528555372
  28. Robert Harris, M.D,Tulsa, OK 741351528061652
  29. Steven Harsha, MDOklahoma City, OK 731041689297244
  30. Valerie Harwell, MDOklahoma City, OK 731041851853329
  31. Laila HashimOklahoma City, OK 731041578290797
  32. Hafsa HassanOklahoma City, OK 731041699412395
  33. Richard Hastings, D.O.Lawton, OK 735051225239155
  34. Joshua Haus, MDOklahoma City, OK 731041164214888
  35. Chandler Haymore, MDOklahoma City, OK 731041891415055
  36. David Hays, MDLawton, OK 735051336342260
  37. Donovan Heffley, PA-COklahoma City, OK 731041366166225
  38. Allison Hemmer, MDOklahoma City, OK 731041225879638
  39. Paul Hendrix, M.D.Tulsa, OK 741041306848692
  40. Dawn Hensley, D.O.Tulsa, OK 741041518011493
  41. Patrick Hensley, M.D.Oklahoma City, OK 731091770946287
  42. Carlota Hernandez, M.D.Oklahoma City, OK 731041952373045
  43. Kendal Hervert, D.O.Tulsa, OK 741331912214115
  44. Philip Hess, M.D.Tulsa, OK 741361750368924
  45. Linda Hickman, M.D.Drumright, OK 740301689762411
  46. Benjamin Hicks, M.D.Tulsa, OK 741251891988481
  47. Michael Hiebert, D.O.Tulsa, OK 741361083154215
  48. Donald Higgins, M.D.Tulsa, OK 741361467439554
  49. Robert Hightower, DOCushing, OK 740231861425878
  50. Erick Hill, M.D.Tulsa, OK 741041508835281

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Oklahoma ranks 44 of 51 per resident

  1. Indiana31
  2. Texas30
  3. Montana29
  4. Oklahoma28
  5. Iowa27
  6. South Dakota27
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

76.7% of these records appear in a Medicare file, against 78.7% 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. Oklahoma76.7%
  2. United States78.7%

Internal Medicine Physician records in Oklahoma, measured

  • In a Medicare file855 of 1,115 · 76.7% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file654 · 58.7% here, 61.4% nationally
  • Not updated in five years or more621 · 55.7% here, 55.4% nationally
  • Median graduation year2007 · the 653 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,115 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Oklahoma: 28 per 100,000 residents against 44 nationally (50 states and D.C.). Oklahoma City has 418 of them (37%).

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. Puerto Rico1,146
  2. Rhode Island1,033
  3. Kansas1,010
  4. Nevada1,229

States with a similar rate per 100,000

  1. Iowa27.2
  2. South Dakota26.9
  3. Montana28.6
  4. Arkansas25.0

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

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.