George Hajjar, MD
NPI 1619978715ActiveIndividual· Internal Medicine, Hematology & Oncology· Santa Clarita, CA
Internal Medicine, Hematology & Oncology (MD) with City of Hope Medical Foundation, practicing in Santa Clarita, California. In 2024 Medicare paid $1,529,005 for 381 patients, and Part D covered 789 of their prescriptions, 74% of them generic. Daiichi Sankyo Inc. was the largest of 2 companies reporting payments in 2025, $663.88 in all, mostly consulting fees. Lists Henry Mayo Newhall Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1619978715 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 10, 2005 |
| Last updated in NPPES | Nov 27, 2023 |
| Certified by provider | Oct 29, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | C52459 | 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 | 381 |
|---|---|
| Services billed | 74,590 across 108 procedure codes |
| Paid by Medicare | $1,529,005 |
Part D prescriptions in 2024
| Prescriptions (claims) | 789 · 1,125 30-day fills |
|---|---|
| Patients | 174 |
| Total drug cost | $2,260,700 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- City of Hope Medical FoundationDuarte, CA · 982 clinicians
Hospital affiliations
- Henry Mayo Newhall HospitalValencia, CA
- Providence Holy Cross Medical CenterMission Hills, CA
Industry payments (Open Payments)
- 2025$663.88 · 2 payments from 2 companies
- 2024$3,637 · 11 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Daiichi Sankyo Inc. | $650.00 | 1 |
| Astellas Pharma US Inc | $13.88 | 1 |
What the 2025 payments were for
- Consulting Fee$650.00 · 1 payment
- Food and Beverage$13.88 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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