Greg R. Angstreich, MD
NPI 1659303873ActiveIndividual· Internal Medicine, Hematology & Oncology· Newport Beach, CA
Internal Medicine, Hematology & Oncology (MD) in Newport Beach, California, trained at Washington University School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $530,922 for 390 claims, against $201,760 paid for services in 2024. Janssen Biotech, Inc. was the largest of 3 companies reporting payments in 2025, $128.53 in all, mostly education.
Overview
| NPI | 1659303873 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 7, 2006 |
| Last updated in NPPES | Nov 27, 2023 |
| Certified by provider | Oct 18, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | C54662 | 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 | 722 |
|---|---|
| Services billed | 2,836 across 11 procedure codes |
| Paid by Medicare | $201,760 |
Part D prescriptions in 2024
| Prescriptions (claims) | 390 · 597 30-day fills |
|---|---|
| Patients | 127 |
| Total drug cost | $530,922 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | Washington University School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Usc Care Medical Group IncLos Angeles, CA · 1,380 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$128.53 · 3 payments from 3 companies
- 2024$100.52 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $84.99 | 1 |
| Merck Sharp & Dohme LLC | $25.70 | 1 |
| Glaxosmithkline, LLC. | $17.84 | 1 |
What the 2025 payments were for
- Education$110.69 · 2 payments
- Food and Beverage$17.84 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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