HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Isaiah Richard Turnbull, MD with clinicians in the same registry specialty: Surgery.

SAINT LOUIS, MO · Exact areaEdit location

2024 published service data · 90 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Nicholas Alan Welko, MD

Surgery · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Critical care, each additional 30 minutes (99292)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
79%Service-mix similarityView profile →

Shannon Ruth Kotch, MD

Surgery · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Critical care, each additional 30 minutes (99292)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
69%Service-mix similarityView profile →

Jessica Kathryn Staszak, MD

Surgery · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
64%Service-mix similarityView profile →

Eric Darvel Jenkins, M.D.

Surgery · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Critical care, each additional 30 minutes (99292)
62%Service-mix similarityView profile →

John Patrick Kirby, MD

Surgery · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Critical care, each additional 30 minutes (99292)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
60%Service-mix similarityView profile →

Obeid Noor Ilahi, MD

Surgery · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
60%Service-mix similarityView profile →

Grace Niziolek, MD

Surgery · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
58%Service-mix similarityView profile →

Tiffany M Osborn, MD

Surgery · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Critical care, each additional 30 minutes (99292)
57%Service-mix similarityView profile →

Patrick Alexander Craft, DO

Surgery · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
57%Service-mix similarityView profile →

Jason Andrew Snyder, MD

Surgery · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
53%Service-mix similarityView profile →

Cody Jamison Barnes, MD

Surgery · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
51%Service-mix similarityView profile →

Carl Freeman, MD

Surgery · Saint Louis, MO

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
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.