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Compare the published Medicare service mix of James Christopher Shepherd, M.D. PH.D. with clinicians in the same registry specialty: Infectious Disease (CMS).

NEW HAVEN, CT · Exact areaEdit location

2024 published service data · 37 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Michael Dean Virata, MD

Infectious Disease · Internal Medicine (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
99%Service-mix similarityView profile →

Margaret Karis Fikrig, M.D.

Specialty details in registry · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
81%Service-mix similarityView profile →

Matthew Harris Grant, M.D.

Infectious Disease (CMS) · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
80%Service-mix similarityView profile →

Lynn Matthews

Infectious Disease (CMS) · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
76%Service-mix similarityView profile →

Anne Spichler Moffarah, MD

Infectious Disease · Internal Medicine (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
76%Service-mix similarityView profile →

Thilinie Dulanjalee Bandaranayake, M.D.

Infectious Disease · Internal Medicine (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
76%Service-mix similarityView profile →

Jeffrey E Topal, MD

Infectious Disease · Internal Medicine (CMS) · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
76%Service-mix similarityView profile →

Stephanie Green, MD

Infectious Disease · Internal Medicine (CMS) · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
75%Service-mix similarityView profile →

Merceditas S Villanueva, MD

Infectious Disease (CMS) · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
74%Service-mix similarityView profile →

Marjorie P Golden, MD

Infectious Disease · Internal Medicine (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
72%Service-mix similarityView profile →

Santhi Singanamala, MD

Infectious Disease (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
69%Service-mix similarityView profile →

Shana Gleeson, M.D.

Infectious Disease · Internal Medicine (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
67%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.