John Gray Wallace, M.D.
NPI 1831486596ActiveIndividual· Family Medicine· Kosciusko, MS
Family Medicine (M.D.) in Kosciusko, Mississippi, trained at University of Mississippi School of Medicine (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $1,760,907 for 18,375 claims, against $375,227 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 7 companies reporting payments in 2025, $795.95 in all, mostly food and beverage.
Overview
| NPI | 1831486596 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 1, 2011 |
| Last updated in NPPES | Sep 22, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 22522 | MS |
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 - Family Practice (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 612 |
|---|---|
| Services billed | 25,452 across 185 procedure codes |
| Paid by Medicare | $375,227 |
Part D prescriptions in 2024
| Prescriptions (claims) | 18,375 · 32,325 30-day fills |
|---|---|
| Patients | 721 |
| Total drug cost | $1,760,907 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Mississippi School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Premier Medical Group of Mississippi LLCCarthage, MS · 31 clinicians
Hospital affiliations
- Baptist Medical Center AttalaKosciusko, MS
- Mississippi Baptist Medical CenterJackson, MS
Other facilities
- Accentcare Home Health of CarthageHome health agency · Carthage, MS
- Accentcare Home Health of GreenwoodHome health agency · Greenwood, MS
- Mississippi Homecare of EuporaHome health agency · Eupora, MS
- Accentcare Hospice & Palliative Care of MsHospice · Flowood, MS
- Attala County Nursing CenterNursing home · Kosciusko, MS
Industry payments (Open Payments)
- 2025$795.95 · 67 payments from 7 companies
- 2024$1,412 · 119 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $334.47 | 41 |
| Novo Nordisk Inc | $180.16 | 11 |
| Pfizer Inc. | $105.55 | 6 |
| Abbvie Inc. | $64.79 | 4 |
| Otsuka America Pharmaceutical, Inc. | $57.27 | 2 |
What the 2025 payments were for
- Food and Beverage$795.95 · 67 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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