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Compare the published Medicare service mix of Robert A Lebby, MD with clinicians in the same registry specialty: Internal Medicine · Pulmonary Disease · Sleep Medicine (CMS).

CA · Exact areaEdit location

2024 published service data · 95 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Mark Michael Chung, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Cerritos, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
87%Service-mix similarityView profile →

Mark David Garfield, MD

Pulmonary Disease · Sleep Medicine (CMS) · Monterey, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
66%Service-mix similarityView profile →

Puja Anil Thakkar, D.O.

Internal Medicine · Sleep Medicine (CMS) · Danville, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
64%Service-mix similarityView profile →

Jenny Tran, DO

Sleep Medicine (CMS) · Novato, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
62%Service-mix similarityView profile →

Anstella Dolores Robinson, MD

Psychiatry · Pulmonary Disease (CMS) · Stanford, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
61%Service-mix similarityView profile →

Fahima Nadi

Internal Medicine (CMS) · El Cajon, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
61%Service-mix similarityView profile →

Brian Rodysill, MD

Sleep Medicine (CMS) · Novato, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
60%Service-mix similarityView profile →

Chenghao Qian, MD

Internal Medicine · Sleep Medicine (CMS) · Sacramento, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
56%Service-mix similarityView profile →

Ronald A Popper, M.D. F.C.C.P.

Internal Medicine · Pulmonary Disease · Sleep Medicine (CMS) · Thousand Oaks, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
55%Service-mix similarityView profile →

Ali Naghash Maheri, M.D.

Internal Medicine · Sleep Medicine (CMS) · Sacramento, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
54%Service-mix similarityView profile →

Rafael Jose Sepulveda-Acosta, MD

Internal Medicine · Sleep Medicine (CMS) · Sonoma, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • 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 →

Pegah Maryam Mashayekhi, D.O.

Internal Medicine · Sleep Medicine (CMS) · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
50%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.