John D. Johnston, MD
NPI 1649241894ActiveIndividual· Internal Medicine· Burlington, NC
Internal Medicine (MD) in Burlington, North Carolina, trained at Mercer University School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $910,654 for 17,352 claims, against $121,943 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) reported $19.55 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1649241894 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 27, 2006 |
| Last updated in NPPES | Sep 28, 2023 |
| Certified by provider | Jan 28, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2001-00156 | NC |
| Internal Medicine | 207R00000X | 200100156 | 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 - Internal Medicine (GA); Practitioner - Internal Medicine (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 281 |
|---|---|
| Services billed | 4,153 across 77 procedure codes |
| Paid by Medicare | $121,943 |
Part D prescriptions in 2024
| Prescriptions (claims) | 17,352 · 37,771 30-day fills |
|---|---|
| Patients | 978 |
| Total drug cost | $910,654 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Mercer University School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Internal Medicine |
Medical group
- Duke Health Integrated Practice, IncDurham, NC · 3,185 clinicians
Hospital affiliations
- Alamance Regional Medical CenterBurlington, NC
- Duke University HospitalDurham, NC
Other facilities
- Adoration Home HealthHome health agency · Mebane, NC
- Amedisys Home HealthHome health agency · Durham, NC
Industry payments (Open Payments)
- 2025$19.55 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $19.55 | 1 |
What the 2025 payments were for
- Food and Beverage$19.55 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 43 internal medicine physicians in Burlington · All internal medicine physicians in North Carolina