Umaprasanna S. Karnam, MD
NPI 1689623852ActiveIndividual· Internal Medicine, Gastroenterology· Riverton, UT
Internal Medicine, Gastroenterology (MD) with Gut Whisperer PC, practicing in Riverton, Utah. Their prescriptions cost Medicare Part D more than their services did: $314,168 for 1,570 claims, against $91,255 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 15 companies reporting payments in 2025, $34,025 in all, mostly speaking and faculty fees. Lists Holy Cross Hospital - Salt Lake and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1689623852 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 8, 2006 |
| Last updated in NPPES | Dec 11, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 50222851205 | 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 | 529 |
|---|---|
| Services billed | 875 across 32 procedure codes |
| Paid by Medicare | $91,255 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,570 · 2,120 30-day fills |
|---|---|
| Patients | 729 |
| Total drug cost | $314,168 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Gut Whisperer PCRiverton, UT · 5 clinicians
Hospital affiliations
- Holy Cross Hospital - Salt LakeSalt Lake City, UT
- Holy Cross Hospital-Jordan ValleyWest Jordan, UT
- Intermountain Health Riverton HospitalRiverton, UT
- Intermountain Medical CenterMurray, UT
- Park City HospitalPark City, UT
Industry payments (Open Payments)
- 2025$34,025 · 104 payments from 15 companies
- 2024$60,458 · 141 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $20,259 | 33 |
| Phathom Pharmaceuticals, Inc. | $12,735 | 13 |
| Abbvie Inc. | $346.99 | 17 |
| Pfizer Inc. | $165.23 | 16 |
| Gilead Sciences, Inc. | $112.00 | 4 |
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$30,832 · 10 payments
- Food and Beverage$2,245 · 87 payments
- Travel and Lodging$948.35 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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