John Alexander
NPI 1831282094ActiveIndividual· Internal Medicine, Cardiovascular Disease· Durham, NC
Internal Medicine, Cardiovascular Disease in Durham, North Carolina, trained at Perelman School of Med at the University of Pennsylvania (class of 1993). In 2024 Medicare paid $108,386 for 1,012 patients, and Part D covered 380 of their prescriptions, 86% of them generic. E.R. Squibb & Sons, L.L.C. was the largest of 3 companies reporting payments in 2025, $31,723 in all, mostly consulting fees.
Overview
| NPI | 1831282094 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Oct 2, 2006 |
| Last updated in NPPES | Mar 21, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 96-00017 | NC |
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 - Cardiovascular Disease (Cardiology) (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,012 |
|---|---|
| Services billed | 2,391 across 33 procedure codes |
| Paid by Medicare | $108,386 |
Part D prescriptions in 2024
| Prescriptions (claims) | 380 · 982 30-day fills |
|---|---|
| Patients | 112 |
| Total drug cost | $60,991 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Perelman School of Med at the University of Pennsylvania |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Duke Health Integrated Practice, IncDurham, NC · 3,185 clinicians
Hospital affiliations
- Duke Regional HospitalDurham, NC
- Duke University HospitalDurham, NC
Industry payments (Open Payments)
- 2025$31,723 · 7 payments from 3 companies
- 2024$7,000 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $22,443 | 4 |
| Novartis Pharmaceuticals Corporation | $6,480 | 2 |
| Eli Lilly and Company | $2,800 | 1 |
What the 2025 payments were for
- Consulting Fee$28,843 · 6 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$2,880 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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