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Compare the published Medicare service mix of Arnold Dc Rivera, M.D. with clinicians in the same registry specialty: Urology (CMS).

DERBY, CT · Exact areaEdit location

2024 published service data · 3 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Feng Hua Guo, MD

Urology (CMS) · Derby, 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)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
36%Service-mix similarityView profile →

Grace Yang Biggs, M.D.

Urology (CMS) · Derby, 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)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
32%Service-mix similarityView profile →

Dinesh Singh, MD

Urology (CMS) · Derby, CT

Shared published services
3 shared services · view billing descriptions
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Insertion of stent in ureter using an endoscope (52332)
29%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.