William Charles O'Connor Jr., PA
NPI 1942892369ActiveIndividual· Physician Assistant· Charlotte, NC
Physician Assistant (PA) with Darst Dermatology PC, practicing in Charlotte, North Carolina. 293 Medicare patients in 2024, $51,469 paid; nearly all of their 271 Part D prescriptions were generic (99%). Janssen Biotech, Inc. was the largest of 18 companies reporting payments in 2025, $2,464 in all, mostly food and beverage.
Overview
| NPI | 1942892369 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Feb 8, 2021 |
| Last updated in NPPES | Apr 21, 2021 |
| Certified by provider | Apr 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 001011006 | NC |
| Dermatology | 207N00000X | 001011006 | NC |
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 (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 293 |
|---|---|
| Services billed | 910 across 40 procedure codes |
| Paid by Medicare | $51,469 |
Part D prescriptions in 2024
| Prescriptions (claims) | 271 · 302 30-day fills |
|---|---|
| Patients | 166 |
| Total drug cost | $13,516 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Darst Dermatology PCCharlotte, NC · 5 clinicians
Industry payments (Open Payments)
- 2025$2,464 · 101 payments from 18 companies
- 2024$3,077 · 94 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $355.38 | 10 |
| Sun Pharmaceutical Industries Inc. | $297.37 | 9 |
| Ucb, Inc. | $289.50 | 4 |
| Pfizer Inc. | $278.62 | 11 |
| Organon LLC | $217.65 | 13 |
What the 2025 payments were for
- Food and Beverage$2,374 · 100 payments
- Education$89.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Physician Assistant providers in Charlotte
- 1841153889
- 1568352417
- 1699151985
- 1326753799
- 1588714109
- 1518764943
- 1558171538
- 1821753476
- 1790282853
- 1851805022
- 1639998156
- 1396718037