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 4 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. William Butron, M.D.Tulsa, OK 741061467743443
  2. Shyla Butt, MDDurant, OK 747011154309086
  3. Krystina Cadenhead, MDOklahoma City, OK 731121477813178
  4. Kammie Caldwell, M.D.Wagoner, OK 744671780663575
  5. Dan Calhoun, MDTulsa, OK 741331255330528
  6. Joshua Calvert, MDTulsa, OK 741041992814909
  7. Stephen Calvert, M.D.Tulsa, OK 741331902875420
  8. Jesse Campbell, MDEdmond, OK 730031982653721
  9. Juan Cantu Clatza, M.D.Oklahoma City, OK 731041902254600
  10. Joan Beatrice Capellan, MDNorman, OK 730711922798966
  11. John Carradini, MDTulsa, OK 741041285262014
  12. Lawrence Carter, MDOklahoma City, OK 731121811257512
  13. Oliver Cerqueira, D.O.Tulsa, OK 741061538295423
  14. Geo Philips Chacko, MDNorman, OK 730711700842440
  15. Shouvik Chakrabarty, MDOklahoma City, OK 731041487622726
  16. Edwin Chan, MDOklahoma City, OK 731031851917769
  17. Christina ChapmanOklahoma City, OK 731041033799259
  18. Semira Charboneau, D.O.Ada, OK 748201619975745
  19. Aanchal Chaudhary, MDOklahoma City, OK 731041336753326
  20. Shabbir Chaudhry Inc, M.D.Oklahoma City, OK 731121487613865
  21. Mehmood Cheema, MDNorman, OK 730711245867779
  22. Diana Chen, MDTulsa, OK 741351518919091
  23. Paul Chin, M.D.Talihina, OK 745711235103151
  24. Harisha ChinthalapallyOklahoma City, OK 731041780307843
  25. Helen Chiou, MDWoodward, OK 738011952367179
  26. Joel Chittazhattu, DOOklahoma City, OK 731041063070787
  27. Jake Cho, MDBoise City, OK 739331124551999
  28. Chisoo Choi, M.D.Tulsa, OK 741281508885799
  29. Erin Chonka, DOTulsa, OK 741351235801853
  30. Karen Chopra, MDOklahoma City, OK 731181538130943
  31. Sheri Christian-Armstrong, DOTahlequah, OK 744641679996706
  32. Ryan Christie, MDMuskogee, OK 744031639782485
  33. Justin Chronister, D.O.Tulsa, OK 741271720248529
  34. Stacy Chronister, D.O.Tulsa, OK 741271194987750
  35. Jian Chu, MDOklahoma City, OK 731041023630860
  36. Andrew Chukwuma, MDOklahoma City, OK 731041639538127
  37. Warren Chun, MDOklahoma City, OK 731041194491282
  38. Lohithasya Chowdary Chunduru, MDOklahoma City, OK 731041821989054
  39. Maristela Cibes-Silva, M.D.Lawton, OK 735051760552277
  40. Todd Clapp, MDOklahoma City, OK 731091013958321
  41. Angela Clifton, DOMoore, OK 731601255906467
  42. Henry Co, M.D.Muskogee, OK 744011073581849
  43. Carolyn Cobb, M.D.Tulsa, OK 741201871538942
  44. Laura Coleman, MDLawton, OK 735051528109691
  45. Madison Collins, DOTulsa, OK 741041801188248
  46. James Colvert, MDAlva, OK 737171568475275
  47. Thomas Coniglione, MDOklahoma City, OK 731141366413825
  48. Daniel Constance, M.D.Lawton, OK 735051912110578
  49. John Cook, MDTulsa, OK 741331316905250
  50. Katherine Cook, DOTulsa, OK 741271821253410

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.