Sharon K. Fey, PA C
NPI 1043265176ActiveIndividual· Internal Medicine, Nephrology· Sioux City, IA
Internal Medicine, Nephrology (PA C) with Liem Som Oei MD PC, practicing in Sioux City, Iowa. Their prescriptions cost Medicare Part D more than their services did: $1,779,780 for 14,517 claims, against $21,012 paid for services in 2024. Travere Therapeutics, Inc. was the largest of 3 companies reporting payments in 2025, $155.00 in all, mostly food and beverage. Lists Floyd Valley Healthcare and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1043265176 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA C |
| Sole proprietor | No |
| NPI issued | May 24, 2006 |
| Last updated in NPPES | May 29, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 001658 | IA |
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 - Physician Assistant (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 93 |
|---|---|
| Services billed | 1,327 across 4 procedure codes |
| Paid by Medicare | $21,012 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14,517 · 23,041 30-day fills |
|---|---|
| Patients | 1,715 |
| Total drug cost | $1,779,780 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Liem Som Oei MD PCSioux City, IA · 6 clinicians
Hospital affiliations
- Floyd Valley HealthcareLe Mars, IA
- Sioux Center HealthSioux Center, IA
- St Lukes Regional Medical CenterSioux City, IA
Industry payments (Open Payments)
- 2025$155.00 · 3 payments from 3 companies
- 2024$483.11 · 27 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Travere Therapeutics, Inc. | $125.19 | 1 |
| Ardelyx, Inc. | $15.51 | 1 |
| Amgen Inc. | $14.30 | 1 |
What the 2025 payments were for
- Food and Beverage$155.00 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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