Christopher Leigh John, MD
NPI 1619974599ActiveIndividual· Internal Medicine, Critical Care Medicine· Little Rock, AR
Internal Medicine, Critical Care Medicine (MD) in Little Rock, Arkansas, licensed in AR, with an NPI issued in July 2005. Their prescriptions cost Medicare Part D more than their services did: $3,013,075 for 3,302 claims, against $117,383 paid for services in 2024. Actelion Pharmaceuticals US, Inc. was the largest of 15 companies reporting payments in 2025, $587.51 in all, mostly food and beverage.
Overview
| NPI | 1619974599 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 7, 2005 |
| Last updated in NPPES | Jul 20, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | E2644 | AR |
| Internal Medicine | 207R00000X | E2644 | AR |
| Internal Medicine, Critical Care Medicine | 207RC0200X | E6244 | AR |
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 - Pulmonary Disease (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 520 |
|---|---|
| Services billed | 4,175 across 21 procedure codes |
| Paid by Medicare | $117,383 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,302 · 4,122 30-day fills |
|---|---|
| Patients | 447 |
| Total drug cost | $3,013,075 |
| Generic share | 36% of claims |
Industry payments (Open Payments)
- 2025$587.51 · 27 payments from 15 companies
- 2024$1,127 · 61 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Actelion Pharmaceuticals US, Inc. | $146.64 | 5 |
| Glaxosmithkline, LLC. | $80.03 | 4 |
| Genzyme Corporation | $60.38 | 3 |
| Grifols USA, LLC | $56.62 | 2 |
| Philips North America LLC | $42.34 | 2 |
What the 2025 payments were for
- Food and Beverage$587.51 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 17 critical care physicians in Little Rock · All critical care physicians in Arkansas