Leonid Yavorkovsky, MD
NPI 1689750119 · Hematology & Oncology Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonid Yavorkovsky, MD is a Hematology & Oncology Physician provider in San Jose, CA (NPI 1689750119).
Provider details
- NPI number
- 1689750119
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A76583 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxyurea | 147 | 39 |
| Lenalidomide | 47 | — |
| Dexamethasone | 32 | — |
| Prednisone | 29 | 12 |
| Allopurinol | 28 | 12 |
| Acyclovir | 26 | 12 |
| Zanubrutinibbrand: Brukinsa | 20 | — |
| Famotidine | 19 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-27
- Last updated
- 2021-12-06
Frequently asked questions
- What is Leonid Yavorkovsky's NPI number?
- Leonid Yavorkovsky's National Provider Identifier (NPI) is 1689750119, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonid Yavorkovsky's specialty?
- Leonid Yavorkovsky is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Leonid Yavorkovsky located?
- Leonid Yavorkovsky's practice location on file with NPPES is 260 International Cir, San Jose, CA 95119-1130.
- What is Leonid Yavorkovsky's phone number?
- The practice phone number listed in the NPPES registry for Leonid Yavorkovsky is (408) 972-7000.
- Does Leonid Yavorkovsky accept Medicare?
- Leonid Yavorkovsky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonid Yavorkovsky's NPI active?
- Yes — Leonid Yavorkovsky's NPI (1689750119) is active in the NPPES registry as of the last update on 2021-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.