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Compare the published Medicare service mix of Mahmoud Youssef Abdallah, DO with clinicians in the same registry specialty: Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS).

GARDEN GROVE, 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 · 58 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Riffat Meraj, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Anaheim, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
84%Service-mix similarity~4.6 milesView profile →

Jesse L. Chang, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Los Alamitos, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
83%Service-mix similarity~5.4 milesView profile →

Imran Sharief, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · Tustin, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
81%Service-mix similarity~9.1 milesView profile →

Manoochehr Abadian Sharifabad, M.D.

Critical Care (Intensivists) (CMS) · Fountain Valley, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
81%Service-mix similarity~4.9 milesView profile →

Andy D Tran, M.D.

Critical Care (Intensivists) · Hospice/Palliative Care · Internal Medicine · Pulmonary Disease (CMS) · Fullerton, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
80%Service-mix similarity~9.2 milesView profile →

Hassan Hashm

Critical Care (Intensivists) (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
80%Service-mix similarity~5.5 milesView profile →

Hung-I Liao, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease · Sleep Medicine (CMS) · Anaheim, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
78%Service-mix similarity~4.6 milesView profile →

Farhan Khabaz, MD

Critical Care (Intensivists) · Hospice/Palliative Care · Internal Medicine · Pulmonary Disease (CMS) · Fullerton, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
76%Service-mix similarity~9.2 milesView profile →

Kareem Irshad Shaikh Ahmad, M.D.

Internal Medicine · Pulmonary Disease (CMS) · Westminster, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
76%Service-mix similarity~2.1 milesView profile →

Richard David Le, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Huntington Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
70%Service-mix similarity~7.2 milesView profile →

Paul Joseph Simpson, M.D.

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Fullerton, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
70%Service-mix similarity~8.8 milesView profile →

Tammy H Le, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · Anaheim, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • 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)
69%Service-mix similarity~4.6 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.