Dimitrios Tzachanis, M.D.
NPI 1528026002ActiveIndividual· Internal Medicine, Hematology & Oncology· La Jolla, CA
Internal Medicine, Hematology & Oncology (M.D.) with Scripps Health, practicing in La Jolla, California. Their prescriptions cost Medicare Part D more than their services did: $4,442,697 for 1,051 claims, against $59,731 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $369.19 in all, mostly food and beverage. Lists Scripps Green Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1528026002 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 3, 2006 |
| Last updated in NPPES | Sep 8, 2025 |
| Certified by provider | Sep 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | C55514 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 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 | 154 |
|---|---|
| Services billed | 639 across 17 procedure codes |
| Paid by Medicare | $59,731 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,051 · 1,519 30-day fills |
|---|---|
| Patients | 87 |
| Total drug cost | $4,442,697 |
| Generic share | 77% of claims |
Education and affiliations
| Medicare specialty | Hematology/Oncology |
|---|---|
| Secondary specialties | Internal Medicine, Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Scripps HealthLa Jolla, CA · 1,433 clinicians
Hospital affiliations
- Scripps Green HospitalLa Jolla, CA
- Scripps Memorial Hospital - EncinitasEncinitas, CA
- Scripps Memorial Hospital la JollaLa Jolla, CA
- Scripps Mercy HospitalSan Diego, CA
- Uc San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA
Industry payments (Open Payments)
- 2025$369.19 · 14 payments from 10 companies
- 2024$2,768 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $93.09 | 4 |
| Janssen Biotech, Inc. | $66.88 | 2 |
| Kite Pharma, Inc. | $43.36 | 1 |
| Glaxosmithkline, LLC. | $28.85 | 1 |
| Pharmaessentia USA Corporation | $28.11 | 1 |
What the 2025 payments were for
- Food and Beverage$369.19 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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