Robert Matthew Carroll, M.D.
NPI 1295875854ActiveIndividual· Internal Medicine, Hematology & Oncology· Newport Beach, CA
Internal Medicine, Hematology & Oncology (M.D.) with Hoag Clinic, practicing in Newport Beach, California. Their prescriptions cost Medicare Part D more than their services did: $249,174 for 42 claims, against $29,903 paid for services in 2024. Janssen Biotech, Inc. was the largest of 9 companies reporting payments in 2025, $1,483 in all, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian as a hospital affiliation.
Overview
| NPI | 1295875854 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 6, 2007 |
| Last updated in NPPES | May 13, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A69851 | 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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 162 |
|---|---|
| Services billed | 407 across 9 procedure codes |
| Paid by Medicare | $29,903 |
Part D prescriptions in 2024
| Prescriptions (claims) | 42 · 78 30-day fills |
|---|---|
| Patients | 27 |
| Total drug cost | $249,174 |
| Generic share | 60% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Hematology |
Medical group
- Hoag ClinicNewport Beach, CA · 460 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$1,483 · 18 payments from 9 companies
- 2024$875.82 · 11 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $613.18 | 6 |
| Caris Mpi, Inc. | $190.94 | 2 |
| Novartis Pharmaceuticals Corporation | $138.86 | 1 |
| Astrazeneca Pharmaceuticals LP | $135.26 | 1 |
| Pfizer Inc. | $125.00 | 1 |
What the 2025 payments were for
- Food and Beverage$1,467 · 17 payments
- Education$15.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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