William Charles O'Neill IV, MD
NPI 1215049648ActiveIndividual· Internal Medicine, Nephrology· Atlanta, GA
Internal Medicine, Nephrology (MD) in Atlanta, Georgia, trained at Tufts University School of Medicine (class of 1979). Mostly services rather than prescriptions: Medicare paid $16,635 for 102 patients in 2024, with only 28 Part D claims. Abiomed reported $380.79 in payments in 2025, mostly travel and lodging.
Overview
| NPI | 1215049648 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 31, 2006 |
| Last updated in NPPES | Mar 29, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 28056 | GA |
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 - Nephrology (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 102 |
|---|---|
| Services billed | 242 across 15 procedure codes |
| Paid by Medicare | $16,635 |
Part D prescriptions in 2024
| Prescriptions (claims) | 28 · 72 30-day fills |
|---|---|
| Total drug cost | $703.48 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Nephrology |
| Secondary specialties | Endocrinology |
Medical group
- The Emory Clinic IncAtlanta, GA · 3,568 clinicians
Hospital affiliations
- Emory University HospitalAtlanta, GA
- Emory University Hospital MidtownAtlanta, GA
Industry payments (Open Payments)
- 2025$380.79 · 5 payments from 1 company
- 2024$169.20 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $380.79 | 5 |
What the 2025 payments were for
- Travel and Lodging$310.82 · 3 payments
- Food and Beverage$69.97 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in Atlanta
- 1023464435
- 1104002906
- 1154676377
- 1164675898
- 1184611600
- 1194969733
- 1205894631
- 1225049422
- 1265420574
- 1285876292
- 1295723492
- 1295766335
All 123 nephrologists in Atlanta · All nephrologists in Georgia