NPPES file of Aug 9, 2026

Gastroenterology Physician in Colorado

334 NPPES records list gastroenterology physician with a practice address in Colorado, 5.7 per 100,000 residents, the 22nd highest rate of 51. Denver and Aurora have the most; each record links to the provider's NPI and the Colorado license search. Page 3 of 7.

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).

Denver has the most, 59

  1. Denver59
  2. Aurora42
  3. Colorado Springs33
  4. Lone Tree25
  5. Lafayette17

Gastroenterology Physician records in Colorado

  1. Hazem Hammad, M.D.Aurora, CO 800451558572743
  2. Daniel HamptonFort Collins, CO 805251154597979
  3. Emily Harding-Theobald, M.D.Aurora, CO 800451306290986
  4. Robert Harmon, MD/PHDMontrose, CO 814011669684643
  5. Aliya Hasan, MDParker, CO 801381912053539
  6. Christopher Haydek, MDCastle Rock, CO 801091164963336
  7. Julie Heller, MDDenver, CO 802051346266483
  8. James Higham-Kessler, M.D.Thornton, CO 802291003105636
  9. Michael Hjelkrem, M.D.Colorado Springs, CO 809071518949437
  10. Paul Hobbs, M.D.Lone Tree, CO 801241780034074
  11. Rodney Holland, M.D.Fort Collins, CO 805251225134018
  12. Kem Hor, M.D.Colorado Springs, CO 809071629155205
  13. James Howden, M.D.Colorado Springs, CO 809091184737041
  14. Dan Hruza, M.DEnglewood, CO 801131366556508
  15. Mary Ann Huang, M.D.Denver, CO 802181477621902
  16. Ana Huerta Alardin, MDGreeley, CO 806341215198817
  17. Alton Hughes, MDGlenwood Springs, CO 816011659454874
  18. Asif Husain, MDAurora, CO 800121578591160
  19. Irfan Hussain, MDDenver, CO 802051134262223
  20. Jeffrey Huston, M.D.Centennial, CO 801221144257031
  21. Nuzhat Iqbal, MDLongmont, CO 805011568467801
  22. Samuel Iwata, MDColorado Springs, CO 809071730273996
  23. Madhan Iyengar, M.D.Lone Tree, CO 801241326316647
  24. Rajesh Jain, M.D.Lakewood, CO 802141811922339
  25. Shalini Jain, MDBoulder, CO 803011922636604
  26. Vaman Jakribettuu, MDLone Tree, CO 801241487696043
  27. Joseph Jenkins, MDFort Collins, CO 805251588760318
  28. Geoffrey Jensen, MDLone Tree, CO 801241518013143
  29. Koren Jones, FNP-CColorado Springs, CO 809071669347985
  30. Steven Kading, MDGreeley, CO 806311033197900
  31. Amir Kalani, MD PHDFort Collins, CO 805261043659022
  32. Ankush Kalra, M.D.Castle Rock, CO 801091811332364
  33. Daniel Kao, M.D.,PH.D.Aurora, CO 800451215170923
  34. Jordan Karlitz, MDDenver, CO 802041043266349
  35. Matthew Karowe, M.D.Boulder, CO 803011851310478
  36. Wesley Kasen, MDLafayette, CO 800261366503823
  37. Seymour Katz, M.D.Englewood, CO 801131295024677
  38. Bryan Kavanaugh, MDColorado Springs, CO 809091346452273
  39. Peter Kaye, M.D., F.A.C.G.Boulder, CO 803011114946639
  40. Mandip Kc, MDCastle Rock, CO 801091487099685
  41. Nicole Kershner, M.D.Fort Collins, CO 805251366615056
  42. Masi Khaja, MDGrand Junction, CO 815051982642526
  43. Taimur Khan, M.D.Lakewood, CO 804011235387358
  44. Joe Kilpatrick, M.D.Colorado Springs, CO 809171487834941
  45. Lawrence Kim, M.DLone Tree, CO 801241275647414
  46. Jeffrey King, M.D.Denver, CO 802061194901942
  47. Donald Kirkpatrick, M.D.Denver, CO 802041447324413
  48. Natasha Klemm, MDAurora, CO 800451144076456
  49. Andrew Korson, M.D.Lakewood, CO 802141023338654
  50. Mary Kovalak, MDEnglewood, CO 801131003861030

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

Colorado ranks 22 of 51 per resident

  1. Maine6.2
  2. Wisconsin5.8
  3. Louisiana5.8
  4. Colorado5.7
  5. Hawaii5.6
  6. South Carolina5.6
  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.

83.5% 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. Colorado83.5%
  2. United States84.4%

Gastroenterology Physician records in Colorado, measured

  • In a Medicare file279 of 334 · 83.5% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file258 · 77.2% here, 73.7% nationally
  • Not updated in five years or more162 · 48.5% here, 55.6% nationally
  • Median graduation year2003 · the 258 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

334 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in Colorado: 5.7 per 100,000 residents against 6.2 nationally (50 states and D.C.). Denver has 59 of them (18%).

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. Connecticut336
  2. Wisconsin340
  3. South Carolina303
  4. Indiana372

States with a similar rate per 100,000

  1. Hawaii5.6
  2. Louisiana5.8
  3. California5.5
  4. Michigan5.5

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.