Johan Nicolaas Leeflang, PA-C
NPI 1508149634ActiveIndividual· Physician Assistant· St George, UT
Physician Assistant (PA-C) with Utah Surgical Associates Inc, practicing in St George, Utah. Mostly services rather than prescriptions: Medicare paid $12,505 for 113 patients in 2024, with only 40 Part D claims. Vertex Pharmaceuticals Incorporated reported $19.96 in payments in 2025, mostly food and beverage. Lists St. George Regional Hospital as a hospital affiliation.
Overview
| NPI | 1508149634 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Sep 26, 2011 |
| Last updated in NPPES | Nov 2, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 6496047-1206 | 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 - Physician Assistant (UT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 113 |
|---|---|
| Services billed | 140 across 56 procedure codes |
| Paid by Medicare | $12,505 |
Part D prescriptions in 2024
| Prescriptions (claims) | 40 · 40 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $480.91 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Utah Surgical Associates IncSaint George, UT · 50 clinicians
Hospital affiliation
- St. George Regional HospitalSt George, UT
Industry payments (Open Payments)
- 2025$19.96 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $19.96 | 1 |
What the 2025 payments were for
- Food and Beverage$19.96 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 111 physician assistants in St George · All physician assistants in Utah