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Compare the published Medicare service mix of Marnie B Welch, MD with clinicians in the same registry specialty: Anesthesiology.

LEBANON, NH · Exact areaEdit location

2024 published service data · 67 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ellen Amanda Seiffert, MD

Anesthesiology · Lebanon, NH

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on neck area (1 year or older) (00320)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
50%Service-mix similarityView profile →

Yvon F Bryan, MD

Anesthesiology · Lebanon, NH

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on neck area (1 year or older) (00320)
41%Service-mix similarityView profile →

George Kenton Allen, MD

Anesthesiology · Lebanon, NH

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
35%Service-mix similarityView profile →

Lucas Daniel Breen, MD

Anesthesiology · Lebanon, NH

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
34%Service-mix similarityView profile →

Shaan Alli, M.D.

Anesthesiology · Lebanon, NH

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on neck area (1 year or older) (00320)
30%Service-mix similarityView profile →

Michael David Herrick, M.D.

Anesthesiology · Lebanon, NH

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
28%Service-mix similarityView profile →

Tung Thanh Nguyen, MD

Anesthesiology · Lebanon, NH

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
26%Service-mix similarityView profile →

Brian Conley Spence, M.D.

Anesthesiology · Lebanon, NH

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
26%Service-mix similarityView profile →

Patrick Roy Hartmann, M.D.

Anesthesiology · Lebanon, NH

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
25%Service-mix similarityView profile →

Jonathan T Weed, MD

Anesthesiology · Lebanon, NH

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
24%Service-mix similarityView profile →

Masha Izakson, M.D.

Anesthesiology · Lebanon, NH

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
24%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.