Richard G. Quist, M.D.
NPI 1861436024ActiveIndividual· Internal Medicine, Gastroenterology· Newport Beach, CA
Internal Medicine, Gastroenterology (M.D.) in Newport Beach, California, trained at George Washington University School of Medicine (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $1,782,709 for 4,827 claims, against $261,950 paid for services in 2024. Abbvie Inc. was the largest of 16 companies reporting payments in 2025, $4,168 in all, mostly food and beverage.
Overview
| NPI | 1861436024 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 16, 2006 |
| Last updated in NPPES | Jul 30, 2026 |
| Certified by provider | Jul 30, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A65910 | 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 | 1,153 |
|---|---|
| Services billed | 2,648 across 49 procedure codes |
| Paid by Medicare | $261,950 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,827 · 7,564 30-day fills |
|---|---|
| Patients | 1,323 |
| Total drug cost | $1,782,709 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Richard G Quist MD Medical Corporation IncNewport Beach, CA · 2 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$4,168 · 210 payments from 16 companies
- 2024$4,862 · 249 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $1,668 | 90 |
| Aimmune Therapeutics, Inc. | $815.16 | 42 |
| Janssen Biotech, Inc. | $333.85 | 17 |
| Pfizer Inc. | $216.10 | 10 |
| Regeneron Healthcare Solutions, Inc. | $215.45 | 12 |
What the 2025 payments were for
- Food and Beverage$4,168 · 210 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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