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Compare the published Medicare service mix of Rong J Guan, M.D. with clinicians in the same registry specialty: Internal Medicine.

BOSTON, MA · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Minping Liu, M.D.

Internal Medicine · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Stool analysis for blood to screen for colon tumors (82270)
  • Administration of pneumococcal vaccine (G0009)
51%Service-mix similarityView profile →

Gail G Lee, M.D.

Internal Medicine · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Administration of pneumococcal vaccine (G0009)
50%Service-mix similarityView profile →

Lela Caros, M.D.

Internal Medicine · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Stool analysis for blood to screen for colon tumors (82270)
  • Administration of pneumococcal vaccine (G0009)
27%Service-mix similarityView profile →

Liam Jette, M.D.

Internal Medicine · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Administration of pneumococcal vaccine (G0009)
23%Service-mix similarityView profile →

Jorge E Casal, M.D.

Internal Medicine · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Administration of pneumococcal vaccine (G0009)
21%Service-mix similarityView profile →

Scott Podolsky, MD

Internal Medicine · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Administration of pneumococcal vaccine (G0009)
19%Service-mix similarityView profile →

Julia Brownell Nath, MD

Internal Medicine · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Administration of pneumococcal vaccine (G0009)
19%Service-mix similarityView profile →

Arooj Hyat, M.D.

Internal Medicine · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Administration of pneumococcal vaccine (G0009)
19%Service-mix similarityView profile →

Mark Daniel Franciosa, M.D.

Internal Medicine · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Administration of pneumococcal vaccine (G0009)
18%Service-mix similarityView profile →

Kevin J Heaton, MD

Internal Medicine · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Administration of pneumococcal vaccine (G0009)
18%Service-mix similarityView profile →

Madhu A Wahi, M.D.

Internal Medicine · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Administration of pneumococcal vaccine (G0009)
17%Service-mix similarityView profile →

Peter Zhi Li, M.D.

Internal Medicine · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
  • Administration of pneumococcal vaccine (G0009)
17%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.