Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Roman Leonid Kleynberg, MD

Individual provider Hematology & Oncology Physician · NPI 1700103298

Dr. Roman Leonid Kleynberg, MD is a Hematology/Oncology in Los Angeles, California. Qualified in 2010, 16 years ago. Practices with Advanced Hematology Oncology Medical Group Inc, an 8-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
16
Licensed in
CA
In the registry since
2010
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6221 Wilshire Blvd Ste 504
Los Angeles, CA 90048-5201
Phone: (323) 965-5679
Fax: (323) 965-5678
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence A120343 (CA)

Record details

NPI number1700103298
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 23, 2010
Last updated in NPPESJanuary 27, 2017

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Advanced Hematology Oncology Medical Group Inc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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