Robert Gareth Gish, M.D.
NPI 1548281322ActiveIndividual· Internal Medicine, Hepatology· Folsom, CA
Internal Medicine, Hepatology (M.D.) in Folsom, California, trained at University of Kansas School of Med (Kc/Wich/Sal) (class of 1980). Their prescriptions cost Medicare Part D more than their services did: $501,066 for 468 claims, against $43,447 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 19 companies reporting payments in 2025, $353,789 in all, mostly speaking and faculty fees.
Overview
| NPI | 1548281322 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 21, 2006 |
| Last updated in NPPES | Feb 25, 2026 |
| Certified by provider | Feb 25, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hepatology Primary | 207RI0008X | G45632 | CA |
| Internal Medicine, Transplant Hepatology | 207RT0003X | 6940 | NV |
| Internal Medicine, Gastroenterology | 207RG0100X | G45632 | 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); Practitioner - Gastroenterology (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 139 |
|---|---|
| Services billed | 435 across 15 procedure codes |
| Paid by Medicare | $43,447 |
Part D prescriptions in 2024
| Prescriptions (claims) | 468 · 874 30-day fills |
|---|---|
| Patients | 102 |
| Total drug cost | $501,066 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | University of Kansas School of Med (Kc/Wich/Sal) |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
- Gastroenterology Medical ClinicFolsom, CA · 8 clinicians
Hospital affiliations
- Healdsburg HospitalHealdsburg, CA
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA
- Providence St Joseph HospitalEureka, CA
- Sutter Roseville Medical CenterRoseville, CA
Industry payments (Open Payments)
- 2025$353,789 · 300 payments from 19 companies
- 2024$415,107 · 273 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $117,336 | 106 |
| Ipsen Biopharmaceuticals, Inc | $83,211 | 40 |
| Mirum Pharmaceuticals, Inc. | $43,203 | 62 |
| Gilead Sciences, Inc. | $39,601 | 42 |
| Glaxosmithkline, LLC. | $33,417 | 13 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$200,428 · 43 payments
- Consulting Fee$98,324 · 38 payments
- Travel and Lodging$37,446 · 108 payments
- Honoraria$8,188 · 3 payments
- Food and Beverage$7,214 · 106 payments
- Compensation for serving as faculty or as a speaker for a medical education program$2,170 · 1 payment
- Education$19.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records