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Compare the published Medicare service mix of Abby Wong, MD with clinicians in the same registry specialty: General Surgery (CMS).

CT · Exact areaEdit location

2024 published service data · 27 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Naomi Berezin, MD

General Surgery (CMS) · Greenwich, CT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
51%Service-mix similarityView profile →

Kevin Michael Schuster, MD

General Surgery (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
49%Service-mix similarityView profile →

Melanie Kay Sion, M.D.

General Surgery (CMS) · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
47%Service-mix similarityView profile →

Eric Tsung, MD

Critical Care (Intensivists) · General Surgery (CMS) · Bridgeport, CT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
44%Service-mix similarityView profile →

Nicholas John Costanzo, M.D.

Critical Care (Intensivists) · General Surgery (CMS) · Hartford, CT

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
43%Service-mix similarityView profile →

Inam Ahmed Shaikh, M.D

Critical Care (Intensivists) · General Surgery (CMS) · Danbury, CT

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
41%Service-mix similarityView profile →

Aditi M Kapil, M.D.

Critical Care (Intensivists) · General Surgery (CMS) · New Haven, CT

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
39%Service-mix similarityView profile →

Heath Walden, M.D.

General Surgery (CMS) · Danbury, CT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
36%Service-mix similarityView profile →

William James Symons, MD

Critical Care (Intensivists) · General Surgery (CMS) · Stamford, CT

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
35%Service-mix similarityView profile →

Kristin Deanne Oliveira, M.D.

General Surgery (CMS) · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
35%Service-mix similarityView profile →

Marissa Defreese, MD

General Surgery (CMS) · Stamford, CT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
35%Service-mix similarityView profile →

Jane Rose Cowan, M.D.

General Surgery (CMS) · New Haven, CT

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
32%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.