NPPES file of Aug 9, 2026

Occupational Medicine Physician in Colorado

93 NPPES records list occupational medicine physician with a practice address in Colorado, 1.6 per 100,000 residents, the 2nd highest rate of 50. Denver and Colorado Springs have the most; each record links to the provider's NPI and the Colorado license search. Page 2 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2083X0100X · 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, 25

  1. Denver25
  2. Colorado Springs10
  3. Aurora8
  4. Fort Collins5
  5. Thornton5

Occupational Medicine Physician records in Colorado

  1. Bonnie McCafferty, MDLakewood, CO 802251306363650
  2. John McInerney, M.D.Arvada, CO 800051932102282
  3. Matthew Miller, MDGolden, CO 804011073606745
  4. James Moses, M.D., M.P.H.Brighton, CO 806011679778161
  5. Yvonne Nelson, M.D.Aurora, CO 800141326164708
  6. Kevin O'Connell, MD, MPHFort Collins, CO 805281063499028
  7. Kevin O'Toole, DO, MPHFort Collins, CO 805281063486835
  8. Daniel Olson, M.D.Pueblo, CO 810081972825396
  9. Ryan Otten, M.D.Thornton, CO 802291649463407
  10. Jason ParkColorado Springs, CO 809071053999250
  11. Glenn Petersen, PA-CDenver, CO 802101013033323
  12. Andrew Plotkin, M.D.Golden, CO 804011508981978
  13. Richard Pompei, D.O.Thornton, CO 802291144610544
  14. Dean Prok, M.D.Thornton, CO 802291881719912
  15. Darrel Quick, M.D.Littleton, CO 801201033115829
  16. Carol Ramsey, DOCommerce City, CO 800221861400921
  17. John Raschbacher, M.D.Denver, CO 802111053520791
  18. Hiep Ritzer, MDDenver, CO 802381235339102
  19. Cecile Rose, MDDenver, CO 802061932278678
  20. Sadie Sanchez, MD, MPHDenver, CO 802041346532850
  21. Oscar SandersGreeley, CO 806341487804068
  22. Douglas Scott, M.D.Denver, CO 802091760508386
  23. William Shaw, MDDenver, CO 802101891868360
  24. Kimberly Siegel, MDFort Collins, CO 805281265591895
  25. Brennan Smith, MDDenver, CO 802041972353456
  26. Cathy Smith, MDGreeley, CO 806341912955097
  27. Kelsey Smithart, DO, MPHCastle Rock, CO 801041780243519
  28. Ryan Stallings, MDColorado Springs, CO 809161144340498
  29. Tracey Stefanon, DOFort Collins, CO 805281114064474
  30. Regan Stiegmann, DOAurora, CO 802111255741336
  31. Daniel Teitelbaum, MDDenver, CO 802181144598855
  32. Ericson Tentori, DODenver, CO 802101912022393
  33. Lloyd Thurston, DODenver, CO 802111326016643
  34. Justin Tingey, MDGreeley, CO 806341265427850
  35. Jan Updike, M.D.Denver, CO 802091912022005
  36. Pamela Vanmierlo, M.D.Colorado Springs, CO 809071851564975
  37. Vernon Vanvonderen, MD, MS, MPHElizabeth, CO 801071548516511
  38. Jag Mohan Walia, MDColorado Springs, CO 809071760406359
  39. Lane Wall, M.D.Fort Carson, CO 809131811989676
  40. John Williams, MD, MPHColorado Springs, CO 809371548294069
  41. Roxana Witter, MDAurora, CO 800451851625552
  42. William Woo, MDWheat Ridge, CO 800331184665333
  43. Shauna Wright, DOGlendale, CO 802461831388727

Source: CMS NPPES, primary taxonomy 2083X0100X: records by practice city and the list of records, file of Aug 9, 2026.

Colorado ranks 2 of 50 per resident

  1. District of Columbia2.5
  2. Colorado1.6
  3. West Virginia1.6
  4. Maine1.4
  5. 50 states and D.C.0.8

Source: CMS NPPES, primary taxonomy 2083X0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

20.4% of these records appear in a Medicare file, against 26.1% 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. Colorado20.4%
  2. United States26.1%

Occupational Medicine Physician records in Colorado, measured

  • In a Medicare file19 of 93 · 20.4% here, 26.1% nationally
  • In the CMS Doctors and Clinicians file10 · 10.8% here, 10.7% nationally
  • Not updated in five years or more69 · 74.2% here, 70.9% nationally
  • Median graduation year2006 · the 10 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2083X0100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

93 NPPES records list occupational medicine physician (2083X0100X) as their primary taxonomy with a practice address in Colorado: 1.6 per 100,000 residents against 0.8 nationally (50 states and D.C.). Denver has 25 of them (27%).

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. Florida91
  2. Michigan90
  3. Washington102
  4. Pennsylvania103

States with a similar rate per 100,000

  1. West Virginia1.6
  2. Puerto Rico1.6
  3. Maine1.4
  4. Hawaii1.3

The largest states

  1. California415
  2. Texas168
  3. Ohio109
  4. Pennsylvania103
  5. Washington102

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.