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Compare the published Medicare service mix of Stephan Alexander Castellanos, MD, MBA with clinicians in the same registry specialty: Hospitalist (CMS).

NEW YORK, NY · Exact areaEdit location

2024 published service data · 384 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Wheytnie Alexandre, MD

Hospitalist · Internal Medicine (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Mohammed Imran Khan, MD

Hospitalist (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Yair Saperstein

Hospitalist (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Daria Zainoullina

Hospitalist (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Sassan Amir Andalibi, M.D.

Hospitalist (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Meti Gebregiorgis

Hospitalist · Internal Medicine (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Shari Forbes, MD

Hospitalist · Internal Medicine (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Donald Matthew Kim, M.D.

Hospitalist · Internal Medicine (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Anna Lopatin Dickerman, M.D.

Psychiatry (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Ro-Jay Reid, MD MSC

Hospitalist · Internal Medicine (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Lila Abassi, M.D.

Specialty details in registry · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Dennis Philip Kurian, MD

Hospitalist (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
73%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.