Yelena Krijanovski, M.D.
NPI 1497877500ActiveIndividual· Internal Medicine, Hematology & Oncology· Fairfield, CA
Internal Medicine, Hematology & Oncology (M.D.) with Sutter Bay Medical Foundation, practicing in Fairfield, California. Their prescriptions cost Medicare Part D more than their services did: $3,326,959 for 1,748 claims, against $152,715 paid for services in 2024. Therakos LLC was the largest of 8 companies reporting payments in 2025, $303.61 in all, mostly food and beverage. Lists Alta Bates Summit Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1497877500 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 6, 2007 |
| Last updated in NPPES | Nov 20, 2025 |
| Certified by provider | Nov 20, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A106347 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 529 |
|---|---|
| Services billed | 1,585 across 18 procedure codes |
| Paid by Medicare | $152,715 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,748 · 2,734 30-day fills |
|---|---|
| Patients | 278 |
| Total drug cost | $3,326,959 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliations
- Alta Bates Summit Medical CenterOakland, CA
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
- Sutter Davis HospitalDavis, CA
- Sutter Medical Center, SacramentoSacramento, CA
- Sutter Solano Medical CenterVallejo, CA
Other facilities
- Sutter Care at HomeHome health agency · Concord, CA
Industry payments (Open Payments)
- 2025$303.61 · 9 payments from 8 companies
- 2024$4,765 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Therakos LLC | $102.60 | 1 |
| Daiichi Sankyo Inc. | $42.93 | 2 |
| Novartis Pharmaceuticals Corporation | $31.89 | 1 |
| Pfizer Inc. | $31.40 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $30.52 | 1 |
What the 2025 payments were for
- Food and Beverage$303.61 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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