John W. Johnston Jr., MD
NPI 1306814801ActiveIndividual· Family Medicine· Meridian, MS
Family Medicine (MD) in Meridian, Mississippi, trained at University of Mississippi School of Medicine (class of 1994). In 2024 Medicare paid $64,891 for 258 patients, and Part D covered 561 of their prescriptions, 84% of them generic. Dexcom, Inc. was the largest of 2 companies reporting payments in 2025, $153.87 in all, mostly food and beverage.
Overview
| NPI | 1306814801 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 9, 2006 |
| Last updated in NPPES | May 12, 2023 |
| Certified by provider | May 12, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 14986 | MS |
| Emergency Medicine | 207P00000X | 14986 | MS |
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 - Family Practice (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 258 |
|---|---|
| Services billed | 847 across 16 procedure codes |
| Paid by Medicare | $64,891 |
Part D prescriptions in 2024
| Prescriptions (claims) | 561 · 785 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $35,617 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Mississippi School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Family Practice |
Medical groups
- Medical Foundation IncMeridian, MS · 212 clinicians
- Rush Medical FoundationMeridian, MS · 31 clinicians
Hospital affiliation
- Ochsner Rush HospitalMeridian, MS
Other facilities
- Ochsner Specialty HospitalLong-term care hospital · Meridian, MS
Industry payments (Open Payments)
- 2025$153.87 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $132.87 | 1 |
| Exact Sciences Corporation | $21.00 | 1 |
What the 2025 payments were for
- Food and Beverage$153.87 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 78 family medicine physicians in Meridian · All family medicine physicians in Mississippi