Leonid L. Yavorkovsky, MD
Hematology & Oncology Physician · San Jose, CA
Leonid L. Yavorkovsky, MD is a hematology & oncology physician with a practice address in San Jose, California, and NPI 1689750119, issued on Oct 27, 2006. Check the license (California A76583, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leonid L. Yavorkovsky
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A76583 CA
Self-reported in NPPES; status is on the state search - Practice location
- 260 International Cir, San Jose, CA 95119
- Phone
- (408) 972-7000
- Enumerated
- Oct 27, 2006
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A765830 CA
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 260 International Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Leonid L. Yavorkovsky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A76583Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
588 Medicare Part D claims for 140 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydroxyurea147 claims
- Lenalidomide47 claims
- Dexamethasone32 claims
- Prednisone29 claims
- Allopurinol28 claims
- Acyclovir26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Leonid L. Yavorkovsky among 1,583 hematology & oncology physician records in California
Leonid L. Yavorkovsky, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in San Jose → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Alaa AltahanSan Jose, CA 951191952757684
- Jankikeerthika Dharmarpandi, MDSan Jose, CA 951191861055782
- Eric Imoto, D.O.San Jose, CA 951191396056438
- Maria Pilar Ivanov, MDSan Jose, CA 951191700930468
- Myron Kwong, MDSan Jose, CA 951191992881403
- Michael Lee, MDSan Jose, CA 951191629631296
- Tin Hla, M.D.San Jose, CA 951161326098179
- Charlene Lee, MDSan Jose, CA 951161831488337
Common questions
What is Leonid L. Yavorkovsky, MD's NPI number?
Leonid L. Yavorkovsky, MD's National Provider Identifier (NPI) is 1689750119, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leonid L. Yavorkovsky, MD located?
The NPPES record lists a practice address at 260 International Cir, San Jose, CA, 95119. Phone: (408) 972-7000. Providers update this record themselves, so call before visiting.
How can I verify Leonid L. Yavorkovsky, MD's license?
NPPES lists California license number A76583, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leonid L. Yavorkovsky, MD prescribe under Medicare Part D?
In 2024, Leonid L. Yavorkovsky, MD had 588 Medicare Part D claims for 140 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.