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Compare the published Medicare service mix of Matthew James Butteri, M.D. with clinicians in the same registry specialty: Hospitalist · Internal Medicine (CMS).

ORANGE, CA · Exact areaEdit location

2024 published service data · 62 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Harry Clifford Fornwalt, MD

Internal Medicine (CMS) · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
74%Service-mix similarityView profile →

Jonnel Ramos Constantino, M.D.

Hospitalist · Internal Medicine (CMS) · Orange, CA

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)
59%Service-mix similarityView profile →

Amish Dangodara, MD

Internal Medicine (CMS) · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
58%Service-mix similarityView profile →

Pei Lily Mulroy, D.O.

Family Practice · Hospitalist (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Initial hospital care with same-day admission and discharge with moderate level of medical decision making, per day, if using time, at least 70 minutes (99235)
55%Service-mix similarityView profile →

Richard Lee

Internal Medicine (CMS) · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
52%Service-mix similarityView profile →

Frederick Chua, M.D.

Internal Medicine (CMS) · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
51%Service-mix similarityView profile →

Lindsey Hendricks, MD

Specialty details in registry · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
49%Service-mix similarityView profile →

Christine Fung

Internal Medicine (CMS) · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
49%Service-mix similarityView profile →

Lanny Lai Hsieh, MD

Hospitalist · Infectious Disease (CMS) · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
48%Service-mix similarityView profile →

Omar Darwish, D.O.

Hospitalist · Internal Medicine (CMS) · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
46%Service-mix similarityView profile →

Jason R. Caberto, D.O.

Internal Medicine (CMS) · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
46%Service-mix similarityView profile →

Sonali Lakshman Iyer, MD

Internal Medicine (CMS) · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
46%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.