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Compare the published Medicare service mix of Maddalena Allegretta, MD with clinicians in the same registry specialty: Rheumatology (CMS).

NEW YORK, NY · Exact areaEdit location

2024 published service data · 105 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Genna Braverman, MD

Internal Medicine · Rheumatology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
52%Service-mix similarityView profile →

Nancyanne Melissa Schmidt, M.D.

Rheumatology (CMS) · New York, NY

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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
43%Service-mix similarityView profile →

Sara Stream, MD

Rheumatology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
41%Service-mix similarityView profile →

Maryam A Own, MD

Rheumatology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
40%Service-mix similarityView profile →

Ioannis Tassiulas, M.D.

Specialty details in registry · New York, NY

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
40%Service-mix similarityView profile →

Percio Gulko

Rheumatology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
35%Service-mix similarityView profile →

Katherine Grace Nickerson, M.D.

Internal Medicine · Rheumatology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
33%Service-mix similarityView profile →

Caroline Haley Siegel, M.D.

Rheumatology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
33%Service-mix similarityView profile →

Angel Ouitan Chen

Rheumatology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
32%Service-mix similarityView profile →

Richard Stern, MD

Internal Medicine · Rheumatology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
31%Service-mix similarityView profile →

Xin Alexander Wang, MD

Rheumatology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
30%Service-mix similarityView profile →

Ileannette Robledo, MD

Rheumatology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
30%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.