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Compare the published Medicare service mix of Mohammed Sirajuddin Hammad, MD with clinicians in the same registry specialty: Hospitalist · Internal Medicine (CMS).

OLYMPIA FIELDS, IL · Exact areaEdit location

2024 published service data · 18 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jehanzeb Sheikh, D.O.

Specialty details in registry · Olympia Fields, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
99%Service-mix similarityView profile →

Veronica Oluwarotimi Abegunde, MD

Hospitalist · Internal Medicine (CMS) · Olympia Fields, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
77%Service-mix similarityView profile →

Saima Safdar, M. D

Family Practice · General Practice · Geriatric Medicine · Hospitalist · Pain Management (CMS) · Olympia Fields, IL

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
76%Service-mix similarityView profile →

Fadi Kara, M.D

Hospitalist · Internal Medicine (CMS) · Olympia Fields, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
55%Service-mix similarityView profile →

Sarah A Monaghan, DO

Hospitalist · Internal Medicine (CMS) · Olympia Fields, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
53%Service-mix similarityView profile →

Nicholas John Zanghi

Hospitalist · Internal Medicine (CMS) · Olympia Fields, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
52%Service-mix similarityView profile →

Shadi Jibawi, MD

Hospitalist · Internal Medicine (CMS) · Olympia Fields, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
43%Service-mix similarityView profile →

Farooq Hassan Khan, M.D.

Internal Medicine (CMS) · Olympia Fields, IL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
37%Service-mix similarityView profile →

Roxana D Sabau, M.D.

Hospitalist · Internal Medicine (CMS) · Olympia Fields, IL

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
36%Service-mix similarityView profile →

Aman Luthra, MD

Family Practice · Hospitalist (CMS) · Olympia Fields, IL

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
34%Service-mix similarityView profile →

Chintan Shah, DO

Hospitalist · Internal Medicine (CMS) · Olympia Fields, IL

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
28%Service-mix similarityView profile →

Mateusz Dawid Gorecki, DO

Hospitalist (CMS) · Olympia Fields, IL

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
28%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.