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 Clark Gregory Owyang, MD with clinicians in the same registry specialty: Critical Care (Intensivists) · Emergency Medicine (CMS).

NEW YORK, NY · Exact areaEdit location

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

Cameron Kyle-Sidell, MD

Specialty details in registry · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with high level of medical decision making (99285)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
93%Service-mix similarityView profile →

Cassidy M Dahn, MD

Critical Care (Intensivists) (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
78%Service-mix similarityView profile →

Barbara O'sullivan, MD

Internal Medicine (CMS) · New York, NY

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
68%Service-mix similarityView profile →

Janet M Shapiro, M.D.

Specialty details in registry · New York, NY

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
67%Service-mix similarityView profile →

Hasina Outtz Reed, MD

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

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
59%Service-mix similarityView profile →

Subani Chandra, MBBS

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

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
59%Service-mix similarityView profile →

Lourdes Maria Sanso, M.D.

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

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
59%Service-mix similarityView profile →

Simon Edward Mates, MD, MPH

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

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
59%Service-mix similarityView profile →

Evgeny V Pinelis, MD

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

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
59%Service-mix similarityView profile →

Benjamin Lewis Ranard, M.D.

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

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
56%Service-mix similarityView profile →

James Lozada, MD

Critical Care (Intensivists) (CMS) · New York, NY

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
56%Service-mix similarityView profile →

Madhavi Parekh, MD

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

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
55%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.