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Compare the published Medicare service mix of Syed Mohsin Shamim Zaidi with clinicians in the same registry specialty: Emergency Medicine.

EL MONTE, CA · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 138 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Charles Omondi Otieno, M.D.

Emergency Medicine · Pasadena, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
99%Service-mix similarity~7.6 milesView profile →

Huma Khan, MD

Emergency Medicine · Pasadena, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
99%Service-mix similarity~6.5 milesView profile →

Brandon Libby, MD

Emergency Medicine · Pasadena, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
99%Service-mix similarity~9.0 milesView profile →

Rebecca Boyer, MD

Emergency Medicine · Arcadia, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
99%Service-mix similarity~3.9 milesView profile →

Adin Harold Levine, M.D.

Emergency Medicine · Arcadia, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
99%Service-mix similarity~4.2 milesView profile →

Anh Aline Mai, M.D.

Emergency Medicine · South El Monte, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
99%Service-mix similarity~1.5 milesView profile →

Juan Carlos Jones, M.D.

Emergency Medicine · Monterey Park, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
99%Service-mix similarity~5.9 milesView profile →

Ivan Oreb Aispuro, MD

Emergency Medicine · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
99%Service-mix similarity~8.5 milesView profile →

Edward J Jarema, MD

Emergency Medicine · Whittier, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
98%Service-mix similarity~7.1 milesView profile →

Roberto Sandoval, M.D.

Emergency Medicine · Pasadena, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
98%Service-mix similarity~8.7 milesView profile →

Courtney Jane Hentzen, M.D.

Emergency Medicine · Whittier, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
98%Service-mix similarity~7.1 milesView profile →

Frishta Ataie, MD

Emergency Medicine · Covina, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Emergency department visit with moderate level of medical decision making (99284)
98%Service-mix similarity~8.2 milesView 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 approximate distance 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.