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Compare the published Medicare service mix of Margaret Ivanov, M.D. with clinicians in the same registry specialty: Nephrology (CMS).

SAN DIEGO, CA · Exact areaEdit location

2024 published service data · 43 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ambarish Mukund Athavale, MD

Nephrology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
82%Service-mix similarityView profile →

Oday Saeed, M.D.

Nephrology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
81%Service-mix similarityView profile →

Danuta Trzebinska, M.D.

Nephrology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
78%Service-mix similarityView profile →

Rakesh Malhotra, M.D., M.P.H.

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

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
76%Service-mix similarityView profile →

Olivia Potok, MD

Nephrology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
76%Service-mix similarityView profile →

Charles Nguyen-Thanh Le, M.D.

Internal Medicine (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
75%Service-mix similarityView profile →

Arman Faravardeh, M.D., F.A.C.P.

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

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
75%Service-mix similarityView profile →

Tepsiri Chongkrairatanakul, MD

Nephrology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
74%Service-mix similarityView profile →

Bijal Vinod Patel, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
74%Service-mix similarityView profile →

Aleksandra Novikov, M.D.

Hospitalist · Nephrology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
73%Service-mix similarityView profile →

Tyler Woodell, MD

Nephrology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
71%Service-mix similarityView profile →

John Stephen Hammes, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Dialysis services, 2-3 physician visits per month (20 years or older) (90961)
71%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.