Robert H. Ziegler, MD
NPI 1972591790ActiveIndividual· Internal Medicine, Gastroenterology· Ogden, UT
Internal Medicine, Gastroenterology (MD) in Ogden, Utah, trained at University of Arkansas College of Medicine (class of 1991). In 2024 Medicare paid $34,230 for 206 patients, and Part D covered 385 of their prescriptions, 68% of them generic. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $543.33 in all, mostly food and beverage.
Overview
| NPI | 1972591790 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 6, 2005 |
| Last updated in NPPES | Dec 4, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 4806533-1205 | UT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (UT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 206 |
|---|---|
| Services billed | 334 across 30 procedure codes |
| Paid by Medicare | $34,230 |
Part D prescriptions in 2024
| Prescriptions (claims) | 385 · 579 30-day fills |
|---|---|
| Patients | 250 |
| Total drug cost | $28,586 |
| Generic share | 68% of claims |
Education and affiliations
| Medical school | University of Arkansas College of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Gastroenterology |
Medical group
- Ogden Clinic Specialty Services LLCOgden, UT · 132 clinicians
Hospital affiliations
- Intermountain Health McKay-Dee HospitalOgden, UT
- Ogden Regional Medical CenterOgden, UT
Industry payments (Open Payments)
- 2025$543.33 · 30 payments from 10 companies
- 2024$546.40 · 31 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $257.66 | 16 |
| Madrigal Pharmaceuticals | $62.14 | 2 |
| Celltrion USA Inc. | $40.99 | 2 |
| Ardelyx, Inc. | $39.74 | 2 |
| Takeda Pharmaceuticals U.S.A., Inc. | $38.24 | 2 |
What the 2025 payments were for
- Food and Beverage$543.33 · 30 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 18 gastroenterologists in Ogden · All gastroenterologists in Utah