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Compare the published Medicare service mix of Ghassan Al-Jazayrly, M.D. with clinicians in the same registry specialty: Hematology/Oncology · Internal Medicine (CMS).

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 92 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Cherry Au

Specialty details in registry · Los Angeles, CA

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 moderate level of medical decision making, if using time, at least 75 minutes (99223)
60%Service-mix similarityView profile →

Sungwon Rachel Kyung, M.D.

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 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 moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
56%Service-mix similarityView profile →

Hao Wei Zhang, M.D.

Hematology/Oncology · Internal Medicine (CMS) · Los Angeles, CA

Shared published services
3 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 moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
55%Service-mix similarityView profile →

Raghuveer Ranganathan, M.D.

Hematology/Oncology · Internal Medicine (CMS) · Los Angeles, CA

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 moderate level of medical decision making, if using time, at least 75 minutes (99223)
53%Service-mix similarityView profile →

Bartosz Chmielowski, MD, PHD

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 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 moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
52%Service-mix similarityView profile →

Leo E Orr, M.D.

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 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 moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
51%Service-mix similarityView profile →

Roman Leonid Kleynberg, M.D.

Hematology/Oncology (CMS) · Los Angeles, CA

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 moderate level of medical decision making, if using time, at least 75 minutes (99223)
50%Service-mix similarityView profile →

Arati Rani Chand, M.D.

Hematology/Oncology · Internal Medicine (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
  • Injection of drug or substance under skin or into muscle (96372)
50%Service-mix similarityView profile →

John Anthony Glaspy, MD

Hematology/Oncology · Internal Medicine (CMS) · Los Angeles, CA

Shared published services
3 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 moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
48%Service-mix similarityView profile →

Lasika Chandradatta Seneviratne, M.D.

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 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 moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
47%Service-mix similarityView profile →

Maxwell Kroloff, M.D.

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 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 moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
47%Service-mix similarityView profile →

David Berz, MD, PHD, MPH

Hematology/Oncology · Internal Medicine (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Administration of chemotherapy into vein, 1 hour or less (96413)
  • Injection of drug or substance under skin or into muscle (96372)
47%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.