A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Samir Gamal Ishak, MD with clinicians in the same registry specialty: Psychiatry.

PORTLAND, IN · 50 milesEdit location
Within 50 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 · 36 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Yana A Alekseeva, M.D.

Psychiatry · Fort Wayne, IN

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)
  • Hospital discharge day management, more than 30 minutes (99239)
78%Service-mix similarity~46.6 milesView profile →

Pu Cheng, M.D.

Psychiatry · Richmond, IN

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
73%Service-mix similarity~41.7 milesView profile →

Hani Ahmad, MD

Psychiatry · Fort Wayne, IN

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
73%Service-mix similarity~46.6 milesView profile →

Mehtab A Khan, M.D., MPH

Psychiatry · Richmond, IN

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)
  • Hospital discharge day management, more than 30 minutes (99239)
72%Service-mix similarity~41.7 milesView profile →

Daniel E Maddela, M.D.

Psychiatry · Fort Wayne, IN

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)
72%Service-mix similarity~46.6 milesView profile →

Deepak Khemka, M.D.

Psychiatry · Fort Wayne, IN

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)
  • Hospital discharge day management, more than 30 minutes (99239)
66%Service-mix similarity~46.6 milesView profile →

Frank Shao, M.D.

Psychiatry · Fort Wayne, IN

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)
59%Service-mix similarity~46.6 milesView profile →

Michelle Elise Wiese, MD

Psychiatry · Fort Wayne, IN

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
56%Service-mix similarity~46.6 milesView profile →

Chad Ryan Percifield, DO

Psychiatry · Fort Wayne, IN

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
52%Service-mix similarity~46.6 milesView profile →

Assad Mukhtar, M.D.

Psychiatry · Muncie, IN

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
51%Service-mix similarity~25.1 milesView profile →

Matthew L Runyan, M.D.

Psychiatry · Fort Wayne, IN

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
51%Service-mix similarity~45.0 milesView profile →

Vinita Prasad, M.D

Psychiatry · Fort Wayne, IN

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
51%Service-mix similarity~46.6 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.