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Compare the published Medicare service mix of Leonid Kleynberg, M.D. with clinicians in the same registry specialty: Hematology/Oncology (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.

John Anthony Glaspy, MD

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

Shared published services
3 shared services · view billing descriptions
  • Infusion into a vein for hydration, each additional hour (96361)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
80%Service-mix similarityView profile →

Gottfried E Konecny, MD

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

Shared published services
3 shared services · view billing descriptions
  • Infusion into a vein for hydration, each additional hour (96361)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
75%Service-mix similarityView profile →

Caspian Oliai, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Infusion into a vein for hydration, each additional hour (96361)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
71%Service-mix similarityView profile →

Sanjai Sharma, MD

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Infusion into a vein for hydration, each additional hour (96361)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Unclassified drugs (J3490)
70%Service-mix similarityView profile →

Deborah Jean Lee Wong, M.D., PH.D.

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

Shared published services
3 shared services · view billing descriptions
  • Infusion into a vein for hydration, each additional hour (96361)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
69%Service-mix similarityView profile →

Lasika Chandradatta Seneviratne, M.D.

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Infusion into a vein for hydration, each additional hour (96361)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
68%Service-mix similarityView profile →

Bartosz Chmielowski, MD, PHD

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Infusion into a vein for hydration, each additional hour (96361)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
67%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
  • Infusion into a vein for hydration, each additional hour (96361)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
67%Service-mix similarityView profile →

Wanxing Chai-Ho, M.D.

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Infusion into a vein for hydration, each additional hour (96361)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
66%Service-mix similarityView profile →

Samuel Jacob Slomowitz, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Infusion into a vein for hydration, each additional hour (96361)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
65%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
  • Insertion of needle into vein for collection of blood sample (36415)
  • Unclassified drugs (J3490)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
63%Service-mix similarityView profile →

Mahshid Melody Mosallaei-Benjamin, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
62%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.