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Compare the published Medicare service mix of James Richard Mattson, MD with clinicians in the same registry specialty: Specialty details in registry.

NEW YORK, NY · Exact areaEdit location

2024 published service data · 167 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Juan Camilo Mendez, MD

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)
49%Service-mix similarityView profile →

Sophia Bronislawa Golec, MD

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)
43%Service-mix similarityView profile →

Elizabeth Chernyak

Neurology (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)
37%Service-mix similarityView profile →

Caroline Elizabeth Mullis, M.D.

Infectious Disease · 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)
35%Service-mix similarityView profile →

Shalwa Mohidul, M.D.

General Surgery (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)
31%Service-mix similarityView profile →

Juan Cosico, M.D.

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)
31%Service-mix similarityView profile →

Oki Ishikawa

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · New York, NY

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
27%Service-mix similarityView profile →

Daniel Patrick Childs

Physical Medicine And Rehabilitation (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)
27%Service-mix similarityView profile →

Neel Chudgar

Thoracic Surgery (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)
26%Service-mix similarityView profile →

Avani Sinha

Endocrinology (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)
26%Service-mix similarityView profile →

Yonatan Moshe Ziv, M.D.

Gastroenterology · 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)
26%Service-mix similarityView profile →

Meera Bhardwaj

Gastroenterology (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)
26%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.