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Compare the published Medicare service mix of Muhammad Abu Zar with clinicians in the same registry specialty: Hospitalist (CMS).

DALLAS, TX · Exact areaEdit location

2024 published service data · 145 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ali R Zamanian Yazdi, MD

Hospitalist · Internal Medicine (CMS) · Dallas, TX

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
73%Service-mix similarityView profile →

Sri Nadella, MD

Hospitalist (CMS) · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
66%Service-mix similarityView profile →

Dima Otaishan

Hospitalist · Internal Medicine (CMS) · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
61%Service-mix similarityView profile →

Edmond Nketti Fomunung, MD

Specialty details in registry · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
60%Service-mix similarityView profile →

James Henry Chang, M.D.

Hospitalist · Internal Medicine (CMS) · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
59%Service-mix similarityView profile →

Shunsuke Robert Sakurai

Hospitalist (CMS) · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
59%Service-mix similarityView profile →

Wei Shan Tsui

Hospitalist (CMS) · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
57%Service-mix similarityView profile →

Ijeoma Obianuju Nduka

Hospitalist (CMS) · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
56%Service-mix similarityView profile →

Justina Johnson, MD

Hospitalist (CMS) · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
56%Service-mix similarityView profile →

Haaris Ahmed Beg, M.D.

Hospitalist · Internal Medicine (CMS) · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
55%Service-mix similarityView profile →

Yifeng Yang, MD

Hospitalist · Internal Medicine (CMS) · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
55%Service-mix similarityView profile →

Sherin M John, MD

Hospitalist (CMS) · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Hospital discharge day management, more than 30 minutes (99239)
54%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.