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 7 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. Lisa Swize, MDEnglewood, CO 801131376680637
  2. Sarah Talamantes, MDAurora, CO 800451649725821
  3. Jayme Tishon, MDColorado Springs, CO 809071417123829
  4. Gerard Tomasso, MDGlenwood Springs, CO 816011598848707
  5. Neil Toribara, MD, PHDDenver, CO 802061144330903
  6. Jon Alexander Torres, MDAurora, CO 800451245869940
  7. Gregory Toy, MDLafayette, CO 800261225599418
  8. Andrzej Triebling, MDLittleton, CO 801201487640017
  9. Thomas Trouillot, M.D.Denver, CO 802181902850811
  10. Vivian Ussui, MDDenver, CO 802061124479837
  11. Ashley VachonLone Tree, CO 801241184042582
  12. Babac Vahabzadeh, M.D.Lone Tree, CO 801241265655153
  13. Erik Van Os, M.D.Durango, CO 813011467565374
  14. Nathan Vicknair, STUDENTPueblo, CO 810031376171298
  15. Mihir Wagh, MDAurora, CO 800451295789345
  16. Bruce Walker, MDThornton, CO 802291790717486
  17. Jing Zhou Wang, MDAurora, CO 800451043703507
  18. Sachin Wani, MDAurora, CO 800451235346685
  19. Emily Ward, M.D.Boulder, CO 803041093927055
  20. Benjamin Warren, MDLoveland, CO 805381912402512
  21. Patrick Webb, M.D.Fort Collins, CO 805251851447668
  22. Bruce Weber, D.O.Thornton, CO 802291811972219
  23. Gareth Weiner, MDThornton, CO 802291003845249
  24. Thomas Welton, M.D.Colorado Springs, CO 809071043249931
  25. Brenda Westhoff, D.O.Highlands Ranch, CO 801291922035476
  26. Robert Williams, M.D.Westminster, CO 800311922042571
  27. Laura Wolfe, M.D.Denver, CO 802201053468942
  28. William Wooddell, MDColorado Springs, CO 809031144369984
  29. Kathleen YanDenver, CO 802061447783535
  30. Teresa Yanchak, M.D.Colorado Springs, CO 809091992119416
  31. Sung Yang, M.D.Pueblo, CO 810031275631285
  32. Richard Zak, MDPagosa Springs, CO 811471316930506
  33. Natalia Zbib, MDDenver, CO 802181962029892
  34. Kelly Zucker, D.OBoulder, CO 803011952793846

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.