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Compare the published Medicare service mix of John Michael Leary, M.D. with clinicians in the same registry specialty: General Practice (CMS).

NEWPORT BEACH, CA · Exact areaEdit location

2024 published service data · 11 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ehab Nabil Hanna Mady, D.O.

Internal Medicine (CMS) · Newport Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
43%Service-mix similarityView profile →

Corinne S. Sugihara, M.D.

Obstetrics/Gynecology (CMS) · Newport Beach, CA

Shared published services
2 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
40%Service-mix similarityView profile →

Catherine Chang, M.D.

Internal Medicine (CMS) · Newport Beach, CA

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
20%Service-mix similarityView profile →

Brian Mark Chesnie, M.D.

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Newport Beach, CA

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)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
17%Service-mix similarityView profile →

David Porzio, M.D.

Internal Medicine (CMS) · Newport Beach, CA

Shared published services
2 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
12%Service-mix similarityView profile →

Mark A Montano, MD

Neurology (CMS) · Newport Beach, 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)
8%Service-mix similarityView profile →

Lawrence Richard Vanmeter, MD

Internal Medicine (CMS) · Newport Beach, 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)
4%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.