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Compare the published Medicare service mix of Vivek A Upadhyay, MD with clinicians in the same registry specialty: Specialty details in registry.

PHILADELPHIA, PA · Exact areaEdit location

2024 published service data · 121 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Saar I Gill, MD

Hematology · Hematology/Oncology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
88%Service-mix similarityView profile →

Rashmi Khanal

Hematology/Oncology · Hematopoietic Cell Transplantation And Cellular Therapy (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
83%Service-mix similarityView profile →

Rebecca Hirsh, MD

Hematology/Oncology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
79%Service-mix similarityView profile →

Michael J Styler, MD

Hematology/Oncology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
76%Service-mix similarityView profile →

Michael Wysota, MD

Hematology · Medical Oncology (CMS) · Philadelphia, PA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
74%Service-mix similarityView profile →

Zainul Shoyeb Hasanali, MD, PHD

Hematology · Internal Medicine (CMS) · Philadelphia, PA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
74%Service-mix similarityView profile →

Kristine M Ward, MD

Hematology/Oncology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
73%Service-mix similarityView profile →

Mark Stephen Diamond, M.D., PH.D.

Hematology/Oncology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
72%Service-mix similarityView profile →

Asya Nina Varshavsky Yanovsky, M.D.

Hematology/Oncology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
70%Service-mix similarityView profile →

Catherine Lai, M.D., M.P.H.

Hematology/Oncology · Internal Medicine (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, 30 minutes or less (99238)
69%Service-mix similarityView profile →

Mary Ellen Martin, MD

Hematology/Oncology · Internal Medicine (CMS) · Philadelphia, PA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
68%Service-mix similarityView profile →

Patrick Mellors

Hematology (CMS) · Philadelphia, PA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
66%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.