A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Paul Robert Buttars, DO with clinicians in the same registry specialty: Pathology (CMS).

SAINT LOUIS, MO · Exact areaEdit location

2024 published service data · 79 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Samuel E Franks, MD

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
88%Service-mix similarityView profile →

Jennifer Kathryn Sehn, MD

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
88%Service-mix similarityView profile →

Ashima Agarwal, M.D.

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
86%Service-mix similarityView profile →

Grace Lee, M.D.

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
85%Service-mix similarityView profile →

Jon H Ritter, MD

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
85%Service-mix similarityView profile →

Dongsi Lu, MD

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
83%Service-mix similarityView profile →

Fouad Ismat Boulos, MD

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
83%Service-mix similarityView profile →

Guoliang Wang, M.D.

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
82%Service-mix similarityView profile →

Ladan Fazlollahi, M.D.

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
81%Service-mix similarityView profile →

Stephen Michael Olson, M.D.

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
81%Service-mix similarityView profile →

Rebecca Danita Chernock, MD

Specialty details in registry · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
81%Service-mix similarityView profile →

Xiuli Liu, MD

Pathology (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
80%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.