Nathaniel Welsh Best, PA-C
NPI 1467928408ActiveIndividual· Physician Assistant· Saint Charles, MO
Physician Assistant (PA-C) in Saint Charles, Missouri, licensed in MO, IL and IA, with an NPI issued in October 2018. 225 Medicare patients in 2024, $25,463 paid; nearly all of their 164 Part D prescriptions were generic (95%).
Overview
| NPI | 1467928408 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Oct 17, 2018 |
| Last updated in NPPES | Sep 10, 2024 |
| Certified by provider | Sep 10, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 2020030531 | MO |
| Physician Assistant | 363A00000X | 085.006912 | IL |
| Physician Assistant | 363A00000X | 126823 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (IA); Practitioner - Physician Assistant (IL); Practitioner - Physician Assistant (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 225 |
|---|---|
| Services billed | 268 across 20 procedure codes |
| Paid by Medicare | $25,463 |
Part D prescriptions in 2024
| Prescriptions (claims) | 164 · 165 30-day fills |
|---|---|
| Patients | 125 |
| Total drug cost | $3,943 |
| Generic share | 95% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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