A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Karthik A Ganapathi, MD, PHD with clinicians in the same registry specialty: Pathology (CMS).

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 41 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Anjanaa Vijayanarayanan, MD

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Microscopic genetic analysis of tumor, manual (88360)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
87%Service-mix similarityView profile →

Kunwar Singh, M.D.

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Microscopic genetic analysis of tumor, manual (88360)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
81%Service-mix similarityView profile →

Ryan Michael Gill, M.D., PH.D.

Hematology · Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Microscopic genetic analysis of tumor, manual (88360)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
81%Service-mix similarityView profile →

Sanjay Kakar, MD

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
75%Service-mix similarityView profile →

Yunn-Yi Chen, MD

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Microscopic genetic analysis of tumor, manual (88360)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
69%Service-mix similarityView profile →

Nicholas Ladwig, M.D.

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Microscopic genetic analysis of tumor, manual (88360)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
68%Service-mix similarityView profile →

Judith Ann Doyle, M.D.

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Microscopic genetic analysis of tumor, manual (88360)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
64%Service-mix similarityView profile →

Gillian Leigh Hale, MD

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
62%Service-mix similarityView profile →

Poonam Vohra

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Microscopic genetic analysis of tumor, manual (88360)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
61%Service-mix similarityView profile →

Rageshree Ramachandran

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
61%Service-mix similarityView profile →

Amir Qorbani, MD

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
61%Service-mix similarityView profile →

Mamatha Chivukula, MD

Pathology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Microscopic genetic analysis of tumor, manual (88360)
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
59%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.