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Compare the published Medicare service mix of Mark M Calder, MD/MPH with clinicians in the same registry specialty: Critical Care (Intensivists) · Orthopedic Surgery (CMS).

TULSA, OK · Exact areaEdit location

2024 published service data · 8 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Azad Dadgar-Dehkordi, D.O.

Orthopedic Surgery (CMS) · Tulsa, OK

Shared published services
3 shared services · view billing descriptions
  • X-ray of hip, 2-3 views (73502)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
95%Service-mix similarityView profile →

Paul Ryan Stafford, MD

Orthopedic Surgery (CMS) · Tulsa, OK

Shared published services
3 shared services · view billing descriptions
  • X-ray of hip, 2-3 views (73502)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
91%Service-mix similarityView profile →

Brent Lane Norris, M.D.

Orthopedic Surgery (CMS) · Tulsa, OK

Shared published services
3 shared services · view billing descriptions
  • X-ray of hip, 2-3 views (73502)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
87%Service-mix similarityView profile →

Brett Allen Barrick, MD

Orthopedic Surgery (CMS) · Tulsa, OK

Shared published services
3 shared services · view billing descriptions
  • X-ray of hip, 2-3 views (73502)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
87%Service-mix similarityView profile →

Mark Johnson, D.O.

Critical Care (Intensivists) · Orthopedic Surgery (CMS) · Tulsa, OK

Shared published services
3 shared services · view billing descriptions
  • X-ray of hip, 2-3 views (73502)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
83%Service-mix similarityView profile →

Jules Arthur Dumais, M.D.

Orthopedic Surgery (CMS) · Tulsa, OK

Shared published services
3 shared services · view billing descriptions
  • X-ray of hip, 2-3 views (73502)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
74%Service-mix similarityView profile →

Brent Alan Dressler, DO

Orthopedic Surgery (CMS) · Tulsa, OK

Shared published services
3 shared services · view billing descriptions
  • X-ray of hip, 2-3 views (73502)
  • X-ray of thigh bone, minimum 2 views (73552)
  • X-ray of shoulder, minimum of 2 views (73030)
47%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.