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Compare the published Medicare service mix of Martin Zammert, M.D. with clinicians in the same registry specialty: Anesthesiology · Critical Care (Intensivists) (CMS).

BOSTON, MA · Exact areaEdit location

2024 published service data · 25 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David A Silver, MD

Anesthesiology · Critical Care (Intensivists) (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
87%Service-mix similarityView profile →

Domagoj Mladinov

Anesthesiology · Critical Care (Intensivists) (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for procedure on heart and large blood vessels (00560)
72%Service-mix similarityView profile →

Jakob Wollborn, MD

Anesthesiology (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Insertion of non-tunneled central venous tube for infusion (5 years or older) (36556)
67%Service-mix similarityView profile →

Sarah Maben, M.D.

Anesthesiology (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
65%Service-mix similarityView profile →

Amanda Szeto Xi, MD

Anesthesiology (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
59%Service-mix similarityView profile →

Shahzad Shaefi, MBBS

Anesthesiology (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
58%Service-mix similarityView profile →

Boris Jung, MD. PHD

Specialty details in registry · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
58%Service-mix similarityView profile →

Richard Mario Pino, MD PHD

Anesthesiology (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
58%Service-mix similarityView profile →

Kenneth T Shelton, M.D.

Anesthesiology (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
58%Service-mix similarityView profile →

Carl Geahchan, M.D

Anesthesiology (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
58%Service-mix similarityView profile →

Ata M Kaynar, M.D.

Anesthesiology · Critical Care (Intensivists) (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
55%Service-mix similarityView profile →

Daniela Lazea, MD

Anesthesiology · Critical Care (Intensivists) (CMS) · Boston, MA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
52%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.