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Compare the published Medicare service mix of Hammam Ghiyas Kemeh, M.D. with clinicians in the same registry specialty: Internal Medicine.

SANTA ANA, CA · Exact areaEdit location

2024 published service data · 27 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Hai Dong Nguyen, M.D.

Internal Medicine · Santa Ana, 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)
  • Critical care, first 30-74 minutes (99291)
  • Hospital discharge day management, more than 30 minutes (99239)
81%Service-mix similarityView profile →

Alex Hashemi, MD

Internal Medicine · Santa Ana, 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)
  • Critical care, first 30-74 minutes (99291)
  • Hospital discharge day management, more than 30 minutes (99239)
77%Service-mix similarityView profile →

Samer Moghaddam, M.D.

Internal Medicine · Santa Ana, 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)
  • Critical care, first 30-74 minutes (99291)
  • Hospital discharge day management, more than 30 minutes (99239)
75%Service-mix similarityView profile →

Ali Shahverdiani, M.D.

Internal Medicine · Santa Ana, 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)
  • Critical care, first 30-74 minutes (99291)
  • Hospital discharge day management, more than 30 minutes (99239)
57%Service-mix similarityView profile →

Duc Nguyen, MD

Internal Medicine · Santa Ana, 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)
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
34%Service-mix similarityView profile →

Robert M Castro, DO

Internal Medicine · Santa Ana, 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)
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
33%Service-mix similarityView profile →

Navneet Kaur Singh, D.O.

Internal Medicine · Santa Ana, 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)
  • Critical care, first 30-74 minutes (99291)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
31%Service-mix similarityView profile →

Hassan Aliakbarian, MD

Internal Medicine · Santa Ana, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
29%Service-mix similarityView profile →

Frank Badin, M.D.

Internal Medicine · Santa Ana, 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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
27%Service-mix similarityView profile →

Meena Kumari Meka, M.D.

Internal Medicine · Santa Ana, CA

Shared published services
1 shared services · view billing descriptions
  • Advance care planning, first 30 minutes (99497)
10%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.