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Compare the published Medicare service mix of Amir Hassan Fathi, MD with clinicians in the same registry specialty: General Surgery · Surgical Oncology (CMS).

CA · Exact areaEdit location

2024 published service data · 141 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Geoffrey Wayne Krampitz, M.D., PH.D.

General Surgery · Surgical Oncology (CMS) · Burlingame, CA

Shared published services
3 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
83%Service-mix similarityView profile →

Kimberly Moore Dalal, MD

General Surgery · Surgical Oncology (CMS) · Burlingame, CA

Shared published services
3 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
77%Service-mix similarityView profile →

Willie Henry Goffney, MD

General Surgery · Surgical Oncology (CMS) · Long Beach, CA

Shared published services
3 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
75%Service-mix similarityView profile →

Bradford James Kim, M.D.

Surgical Oncology (CMS) · Upland, CA

Shared published services
3 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
75%Service-mix similarityView profile →

Avo Artinyan, MD

Colorectal Surgery (Proctology) · General Surgery · Surgical Oncology (CMS) · Duarte, CA

Shared published services
3 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
73%Service-mix similarityView profile →

Jula Veerapong, MD

General Surgery (CMS) · San Diego, CA

Shared published services
3 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
72%Service-mix similarityView profile →

Leland Jay Foshag, M.D.

Surgical Oncology (CMS) · Los Angeles, CA

Shared published services
3 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
68%Service-mix similarityView profile →

Emanuel Afram Shapera, MD

General Surgery (CMS) · Temecula, CA

Shared published services
3 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
68%Service-mix similarityView profile →

Smit Singla, MD

Surgical Oncology (CMS) · Sacramento, CA

Shared published services
3 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
67%Service-mix similarityView profile →

Michael O'leary, MD

General Surgery · Surgical Oncology (CMS) · Loma Linda, CA

Shared published services
3 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
66%Service-mix similarityView profile →

Brian Eugene Kadera, M.D.

General Surgery · Surgical Oncology (CMS) · Santa Monica, 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 →

William W. Tseng, M.D.

General Surgery · Surgical Oncology (CMS) · Arcadia, 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 →
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.