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Compare the published Medicare service mix of Farhad Najafi with clinicians in the same registry specialty: Internal Medicine.

IRVINE, CA · Exact areaEdit location

2024 published service data · 61 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Firas Naji, D.O.

Internal Medicine · Irvine, 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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
90%Service-mix similarityView profile →

Jun Liu, MD

Internal Medicine · Irvine, 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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
84%Service-mix similarityView profile →

Mamak Eatesam, M.D.

Internal Medicine · Irvine, 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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
80%Service-mix similarityView profile →

Francisco Saguil Perez, M.D.

Internal Medicine · Irvine, 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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
80%Service-mix similarityView profile →

Kambiz V Karimi, M.D.

Internal Medicine · Irvine, 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)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
77%Service-mix similarityView profile →

Niroshan Kirupananthan, MD

Internal Medicine · Irvine, 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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
65%Service-mix similarityView profile →

Edward A Himes, MD

Internal Medicine · Irvine, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
50%Service-mix similarityView profile →

Mahdieh Fallahtafti, D.O.

Internal Medicine · Irvine, CA

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
34%Service-mix similarityView profile →

Nidal Al Hannat, M.D.

Internal Medicine · Irvine, 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)
28%Service-mix similarityView profile →

Erik J Geiger, MD

Internal Medicine · Irvine, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
22%Service-mix similarityView profile →

Brian B Lo, MD

Internal Medicine · Irvine, CA

Shared published services
1 shared services · view billing descriptions
  • Advance care planning, first 30 minutes (99497)
9%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.