Richard F. McGuire, M.D.
NPI 1437196730ActiveIndividual· Internal Medicine, Gastroenterology· Fullerton, CA
Internal Medicine, Gastroenterology (M.D.) in Fullerton, California, trained at New York University School of Medicine (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $642,865 for 5,219 claims, against $46,923 paid for services in 2024. Exact Sciences Corporation was the largest of 2 companies reporting payments in 2025, $76.46 in all, mostly food and beverage.
Overview
| NPI | 1437196730 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 2, 2006 |
| Last updated in NPPES | Jul 14, 2026 |
| Certified by provider | Jul 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | G60070 | 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 - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 200 |
|---|---|
| Services billed | 461 across 16 procedure codes |
| Paid by Medicare | $46,923 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,219 · 11,450 30-day fills |
|---|---|
| Patients | 666 |
| Total drug cost | $642,865 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Gastroenterology |
Medical group
- Caremore Medical Group IncWhittier, CA · 15 clinicians
Hospital affiliations
- Providence St. Jude Medical CenterFullerton, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$76.46 · 3 payments from 2 companies
- 2024$216.12 · 9 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $58.03 | 2 |
| Janssen Biotech, Inc. | $18.43 | 1 |
What the 2025 payments were for
- Food and Beverage$76.46 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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