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Compare the published Medicare service mix of Erik J Geiger, MD 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.

Ahsan Rashid, MD

Internal Medicine · Irvine, CA

Shared published services
3 shared services · view billing descriptions
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
  • Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes (99458)
  • Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (99454)
50%Service-mix similarityView profile →

Brian B Lo, MD

Internal Medicine · Irvine, CA

Shared published services
3 shared services · view billing descriptions
  • Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)
  • Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (99454)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
44%Service-mix similarityView profile →

Shawn Hwang Hamilton, MD

Internal Medicine · Irvine, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
24%Service-mix similarityView profile →

Farhad Nassiri Afshar, MD

Internal Medicine · Irvine, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
24%Service-mix similarityView profile →

Yeming Sun, M.D.

Internal Medicine · Irvine, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
24%Service-mix similarityView profile →

Farrokh Alemzadeh, MD

Internal Medicine · Irvine, CA

Shared published services
3 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month (99487)
24%Service-mix similarityView profile →

Farhad Najafi

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 →

Mamak Eatesam, M.D.

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 →

Katarina Veskovic, M.D.

Internal Medicine · Irvine, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
21%Service-mix similarityView profile →

Firas Naji, D.O.

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)
21%Service-mix similarityView profile →

Bobby Sasson, M.D., M.P.H.

Internal Medicine · Irvine, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
21%Service-mix similarityView profile →

Bang S Kim, M.D.

Internal Medicine · Irvine, CA

Shared published services
2 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
21%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.