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Compare the published Medicare service mix of Ronald Lee Mars, MD with clinicians in the same registry specialty: Nephrology (CMS).

JACKSONVILLE, FL · Exact areaEdit location

2024 published service data · 65 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Bhaktidevi Makadia, M.D.

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
84%Service-mix similarityView profile →

Charles William Heilig, MD

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
81%Service-mix similarityView profile →

Gil A Cu, MD

Internal Medicine · Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
79%Service-mix similarityView profile →

Irtiza Hasan, MD, MSC

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
76%Service-mix similarityView profile →

Alaa S. Awad, M.D.

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
76%Service-mix similarityView profile →

Hafiz Sarfraz Khan, MD

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
73%Service-mix similarityView profile →

Vishal Jaikaransingh, M.D.

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
72%Service-mix similarityView profile →

Violeta Alvarez Retamales, MD

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
70%Service-mix similarityView profile →

Shane Anthony Bobart, MD

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
70%Service-mix similarityView profile →

Paul E Hanna, MD, MSC

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
65%Service-mix similarityView profile →

Ibrahim Khambati, MD, MBA

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
63%Service-mix similarityView profile →

Andreea Poenariu, M.D.

Nephrology (CMS) · Jacksonville, FL

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
60%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.