Leonard Thomas Hackett, M.D.
NPI 1669466868ActiveIndividual· Internal Medicine, Hematology & Oncology· Fresno, CA
Internal Medicine, Hematology & Oncology (M.D.) with California Cancer Associates for Research and Excellence Inc, practicing in Fresno, California. In 2024 Medicare paid $5,609,998 for 1,248 patients, and Part D covered 1,624 of their prescriptions, 70% of them generic. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $732.16 in all, mostly food and beverage. Lists Clovis Community Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1669466868 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 2, 2005 |
| Last updated in NPPES | Oct 9, 2025 |
| Certified by provider | Oct 9, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | G52529 | 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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,248 |
|---|---|
| Services billed | 344,270 across 207 procedure codes |
| Paid by Medicare | $5,609,998 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,624 · 2,496 30-day fills |
|---|---|
| Patients | 228 |
| Total drug cost | $3,972,539 |
| Generic share | 70% of claims |
Education and affiliations
| Graduation year | 1977 |
|---|---|
| Medicare specialty | Hematology |
| Secondary specialties | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- California Cancer Associates for Research and Excellence IncSan Diego, CA · 65 clinicians
Hospital affiliations
- Clovis Community Medical CenterClovis, CA
- Saint Agnes Medical CenterFresno, CA
Industry payments (Open Payments)
- 2025$732.16 · 30 payments from 15 companies
- 2024$1,428 · 64 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $121.45 | 5 |
| Springworks Therapeutics, Inc. | $115.70 | 4 |
| Novartis Pharmaceuticals Corporation | $111.99 | 4 |
| Astrazeneca Pharmaceuticals LP | $66.80 | 3 |
| Celgene Corporation | $59.70 | 3 |
What the 2025 payments were for
- Food and Beverage$732.16 · 30 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 37 hematologist-oncologists in Fresno · All hematologist-oncologists in California