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Compare the published Medicare service mix of Thomas Neil O'callaghan, MD with clinicians in the same registry specialty: Internal Medicine.

ANN ARBOR, MI · Exact areaEdit location

2024 published service data · 267 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Roa'a Alkloub, MD

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
100%Service-mix similarityView profile →

Diana S Kakos, MD

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
100%Service-mix similarityView profile →

Charles B Siedlecki, MD

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
100%Service-mix similarityView profile →

Ruth Angrand

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
100%Service-mix similarityView profile →

David Andrew Bozaan, M.D.

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
100%Service-mix similarityView profile →

Jamie George Jackish, M.D.

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
86%Service-mix similarityView profile →

Raya Nasouh Bani Kenana, MD

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
80%Service-mix similarityView profile →

Malihe Rezazadegan, M.D

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
73%Service-mix similarityView profile →

Nathan Jon Moore, MD

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
69%Service-mix similarityView profile →

Qinghui Liu, MD

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
68%Service-mix similarityView profile →

Albert Farnham Emery, M.D.

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
64%Service-mix similarityView profile →

Dominic Otto Henning Awuah, MD

Internal Medicine · Ann Arbor, MI

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
62%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.