Uladzislau Naidzionak, M.D.
NPI 1023246212ActiveIndividual· Internal Medicine· San Diego, CA
Internal Medicine (M.D.) with Emergency and Acute Care Medical Corporation and 1 other group, practicing in San Diego, California. In 2024 Medicare paid $2,025,821 for 170 patients, and Part D covered 635 of their prescriptions, 71% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 41 companies reporting payments in 2025, $2,890 in all, mostly food and beverage. Lists Sharp Chula Vista Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1023246212 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 25, 2009 |
| Last updated in NPPES | Feb 17, 2026 |
| Certified by provider | Feb 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2009012274 | MO |
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 - Medical Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 170 |
|---|---|
| Services billed | 71,182 across 77 procedure codes |
| Paid by Medicare | $2,025,821 |
Part D prescriptions in 2024
| Prescriptions (claims) | 635 · 819 30-day fills |
|---|---|
| Patients | 88 |
| Total drug cost | $2,929,426 |
| Generic share | 71% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Medical Oncology |
Medical groups
- Emergency and Acute Care Medical CorporationLa Mesa, CA · 422 clinicians
- San Diego Oncology Medical ClinicSan Diego, CA · 2 clinicians
Hospital affiliations
- Sharp Chula Vista Medical CenterChula Vista, CA
- Sharp Memorial HospitalSan Diego, CA
Industry payments (Open Payments)
- 2025$2,890 · 112 payments from 41 companies
- 2024$13,925 · 109 payments from 35 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $347.55 | 16 |
| Novartis Pharmaceuticals Corporation | $248.24 | 10 |
| Eisai Inc. | $178.18 | 6 |
| Merck Sharp & Dohme LLC | $169.49 | 6 |
| Alexion Pharmaceuticals, Inc. | $155.49 | 6 |
What the 2025 payments were for
- Food and Beverage$2,890 · 112 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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