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 3 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. Chintan Parikh, M.D.Norman, OK 730711598733982
  2. Jitendra Parmar, MDEufaula, OK 744321740273556
  3. Aatish Patel, M.D.Tulsa, OK 741351154611457
  4. Trushar Patel, M.D.Oklahoma City, OK 731121639378599
  5. Ika Peleg, MDTulsa, OK 741351629051834
  6. Frank Peluso, DOTulsa, OK 741361689661530
  7. Barry Perkins, M.D.Oklahoma City, OK 731021427033844
  8. Vincent Petros, DOOklahoma City, OK 731041134539729
  9. Abhishek Polavarapu, MDTulsa, OK 741361770996027
  10. Chandrasekhar Polepalle, MDMuskogee, OK 744011376536219
  11. Vijay Prabhu, M.D.Edmond, OK 730341982616538
  12. Dipa Puwar, DOTulsa, OK 741331194353086
  13. Carl Raczkowski, M.D.Oklahoma City, OK 731121851375646
  14. Vasuevan Raghuraman, MDTulsa, OK 741361073582961
  15. Robert Rankin, M.D.Oklahoma City, OK 731121174507966
  16. Sanku Rao, MDEnid, OK 737011992864086
  17. Abbas Raza, MDOklahoma City, OK 731121326006040
  18. David Roberts, M.D.Edmond, OK 730131285799825
  19. Arun Sachdev, M.D.Oklahoma City, OK 731121578547170
  20. George Salem, MDOklahoma City, OK 731041659711356
  21. Ajay Sangal, MDMuskogee, OK 744011770579989
  22. Thomas Schiller, M.D.Tulsa, OK 741371891782082
  23. Cristopher Schultz, D.O.Enid, OK 737011881693752
  24. Jeff Scott, M.D.Oklahoma City, OK 731121649245929
  25. Richard Seifert, M.D.Tulsa, OK 741041487698031
  26. Leann Serbousek, M.D.Oklahoma City, OK 731201972512523
  27. Kenneth Seres, M.D.Oklahoma City, OK 731121871633404
  28. Sanjay Sikka, M.D.Oklahoma City, OK 731121528295698
  29. Norman Simon, M.D.Tulsa, OK 741051215177415
  30. Dushyant Singh, MD FACPTulsa, OK 741361598780660
  31. Pooja SinghalOklahoma City, OK 731021588825368
  32. Danny Smith, M.D.Oklahoma City, OK 731121104801562
  33. Zachary Smith, M.D.Oklahoma City, OK 731121437537024
  34. Paul Stanton, M.D.Tulsa, OK 741361407841794
  35. David Stokesberry, M.D.Oklahoma City, OK 731121427032234
  36. Michael Sutton, DOTulsa, OK 741351710543772
  37. Thomas Swafford, MDStillwater, OK 740741972602050
  38. Bishr SwarOklahoma City, OK 731041326660127
  39. Taseen Syed, M.D.Oklahoma City, OK 731121346691573
  40. Harvey Tatum, MDTulsa, OK 741041659333623
  41. Roy Thompson, M.D.Tulsa, OK 741331053599951
  42. William Tierney, MDOklahoma City, OK 731041255300513
  43. Tony Tran, M.D.Oklahoma City, OK 731201487829362
  44. Erin Tsambikos, MDEdmond, OK 730341861985731
  45. Shana UsiukiewiczOklahoma City, OK 731041992327563
  46. Kishore Vipperla, M.D.Tulsa, OK 741041669663811
  47. Patrick Volak, M. D.Tulsa, OK 741361174518336
  48. Sarah Von Muller, MDBroken Arrow, OK 740121710094925
  49. Verapan Vongthavaravat, M.D.Oklahoma City, OK 731421528199866
  50. Sumit Walia, MDOklahoma City, OK 731121295963247

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.