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Compare the published Medicare service mix of Michael Arnstein, M.D. with clinicians in the same registry specialty: Hand Surgery · Plastic And Reconstructive Surgery (CMS).

TORRANCE, CA · Exact areaEdit location

2024 published service data · 15 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John Brian Boyd, M.D.

Plastic And Reconstructive Surgery (CMS) · Torrance, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
35%Service-mix similarityView profile →

William Chul Kim, M.D.

Orthopedic Surgery (CMS) · Torrance, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
34%Service-mix similarityView profile →

Melvin Snyder, M.D.

Specialty details in registry · Torrance, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
33%Service-mix similarityView profile →

Roy B Blumenstrauch, M.D.

Dermatology (CMS) · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm (13121)
  • Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm (13132)
29%Service-mix similarityView profile →

Amber A. Kyle, M.D.

Dermatology (CMS) · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm (11602)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
23%Service-mix similarityView profile →

David O Kim, M.D.

Gastroenterology · Internal Medicine (CMS) · Torrance, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
18%Service-mix similarityView profile →

Guilda Sarraf, M.D.

Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · Torrance, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
14%Service-mix similarityView profile →

Hala Koudsi, M.D.

Dermatology (CMS) · Torrance, CA

Shared published services
2 shared services · view billing descriptions
  • Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm (11442)
  • Destruction of precancer skin growth, 1 growth (17000)
8%Service-mix similarityView profile →

Sutha Sachar, MD

Gastroenterology · Internal Medicine (CMS) · Torrance, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
7%Service-mix similarityView profile →

Peter S Borden, MD

Orthopedic Surgery (CMS) · Torrance, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
7%Service-mix similarityView profile →

Grzegorz Majcher, M.D.

Internal Medicine · Nephrology (CMS) · Torrance, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
5%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.