John Stanley Griffin Jr., MD
NPI 1720088636ActiveIndividual· Internal Medicine· Texarkana, TX
Internal Medicine (MD) in Texarkana, Texas, trained at University of Arkansas College of Medicine (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $1,408,973 for 16,766 claims, against $414,363 paid for services in 2024. Corcept Therapeutics was the largest of 10 companies reporting payments in 2025, $324.52 in all, mostly food and beverage.
Overview
| NPI | 1720088636 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 21, 2005 |
| Last updated in NPPES | Dec 31, 2019 |
| Certified by provider | Dec 31, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | H7748 | TX |
| Internal Medicine | 207R00000X | C7276 | 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 - Internal Medicine (AR); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 743 |
|---|---|
| Services billed | 24,440 across 137 procedure codes |
| Paid by Medicare | $414,363 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16,766 · 39,615 30-day fills |
|---|---|
| Patients | 897 |
| Total drug cost | $1,408,973 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Arkansas College of Medicine |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Internal Medicine |
Medical group
- Collom and Carney Clinic AssociationTexarkana, TX · 51 clinicians
Hospital affiliations
- Christus Mother Frances HospitalTyler, TX
- Christus St Michael Health SystemTexarkana, TX
Other facilities
- Centerwell Home HealthHome health agency · Texarkana, AR
- Chambers Home Health AgencyHome health agency · Texarkana, TX
- Elite Home HealthHome health agency · Nashville, AR
- Encompass Health Home HealthHome health agency · Texarkana, AR
- Onesource Home Care IncHome health agency · Longview, TX
Industry payments (Open Payments)
- 2025$324.52 · 17 payments from 10 companies
- 2024$662.98 · 28 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $70.62 | 2 |
| Novartis Pharmaceuticals Corporation | $63.78 | 4 |
| Exact Sciences Corporation | $49.75 | 3 |
| Pfizer Inc. | $33.32 | 2 |
| Abbott Laboratories | $21.77 | 1 |
What the 2025 payments were for
- Food and Beverage$324.52 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 internal medicine physicians in Texarkana · All internal medicine physicians in Texas