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Compare the published Medicare service mix of Suleman A Umar, M.D. with clinicians in the same registry specialty: Critical Care (Intensivists) · Internal Medicine (CMS).

OAK LAWN, IL · Exact areaEdit location

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

Omar A Siddiqui, M.D.

Family Practice · Internal Medicine (CMS) · Oak Lawn, IL

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)
89%Service-mix similarityView profile →

Vivian Wai-Yin Lam, MD

Critical Care (Intensivists) · Emergency Medicine (CMS) · Oak Lawn, IL

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 35 minutes (99232)
88%Service-mix similarityView profile →

Joseph William Quinn, D.O.

Critical Care (Intensivists) (CMS) · Oak Lawn, IL

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 35 minutes (99232)
88%Service-mix similarityView profile →

Faiza Hashmi, MD

Specialty details in registry · Oak Lawn, IL

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 35 minutes (99232)
88%Service-mix similarityView profile →

Isis M Duran, MD

Critical Care (Intensivists) (CMS) · Oak Lawn, IL

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 35 minutes (99232)
88%Service-mix similarityView profile →

Amy Ann Stewart, MD

Critical Care (Intensivists) (CMS) · Oak Lawn, IL

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)
87%Service-mix similarityView profile →

Abdullah Qureshi, M.D.

Internal Medicine (CMS) · Oak Lawn, IL

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)
84%Service-mix similarityView profile →

Valerie Ewing Mcclintock Griffeth, M.D., PH.D.

Critical Care (Intensivists) · Emergency Medicine (CMS) · Oak Lawn, IL

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 similarityView profile →

Kristopher Roger Fultz, DO

Critical Care (Intensivists) · Internal Medicine (CMS) · Oak Lawn, IL

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 35 minutes (99232)
82%Service-mix similarityView profile →

Thomas Kevin Seagraves, MD

Critical Care (Intensivists) · Emergency Medicine (CMS) · Oak Lawn, IL

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 35 minutes (99232)
81%Service-mix similarityView profile →

Natalie Channell

Critical Care (Intensivists) (CMS) · Oak Lawn, IL

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
76%Service-mix similarityView profile →

Evan Michael Schultz, DO

Critical Care (Intensivists) (CMS) · Oak Lawn, IL

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
76%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.