Margaret V. Cox, MD
NPI 1407010952ActiveIndividual· Internal Medicine· Fort Smith, AR
Internal Medicine (MD) in Fort Smith, Arkansas, trained at University of Arkansas College of Medicine (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $1,645,606 for 16,243 claims, against $162,393 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 7 companies reporting payments in 2025, $154.94 in all, mostly food and beverage.
Overview
| NPI | 1407010952 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 14, 2008 |
| Last updated in NPPES | Jul 1, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | E6114 | AR |
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 - Internal Medicine (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 580 |
|---|---|
| Services billed | 4,096 across 81 procedure codes |
| Paid by Medicare | $162,393 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16,243 · 36,846 30-day fills |
|---|---|
| Patients | 1,035 |
| Total drug cost | $1,645,606 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Arkansas College of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Mercy Clinic Fort Smith CommunitiesFort Smith, AR · 372 clinicians
- Fands Physical Therapy, IncAlma, AR · 221 clinicians
Hospital affiliations
- Baptist Health - Fort SmithFort Smith, AR
- Mercy Hospital Fort SmithFort Smith, AR
- Mercy Hospital Northwest ArkansasRogers, AR
- Mercy Hospital OzarkOzark, AR
- Mercy Hospital ParisParis, AR
Other facilities
- Adoration Home HealthHome health agency · Van Buren, AR
- Area Agency on Aging of Western Arkansas, Inc.Home health agency · Fort Smith, AR
- Mercy Home HealthHome health agency · Rogers, AR
- Trinity River Valley Home HealthHome health agency · Russellville, AR
Industry payments (Open Payments)
- 2025$154.94 · 10 payments from 7 companies
- 2024$96.50 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $41.72 | 3 |
| Exact Sciences Corporation | $32.26 | 2 |
| Novartis Pharmaceuticals Corporation | $18.91 | 1 |
| Astrazeneca Pharmaceuticals LP | $16.81 | 1 |
| Abbott Laboratories | $16.44 | 1 |
What the 2025 payments were for
- Food and Beverage$154.94 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 82 internal medicine physicians in Fort Smith · All internal medicine physicians in Arkansas