Mark Alan Dyer, M.D.
NPI 1114085768ActiveIndividual· Internal Medicine· Little Rock, AR
Internal Medicine (M.D.) in Little Rock, Arkansas, trained at University of Arkansas College of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $641,105 for 8,730 claims, against $346,600 paid for services in 2024. Novo Nordisk Inc was the largest of 4 companies reporting payments in 2025, $173.97 in all, mostly food and beverage.
Overview
| NPI | 1114085768 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 5, 2006 |
| Last updated in NPPES | Apr 17, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | E-4368 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 513 |
|---|---|
| Services billed | 15,159 across 139 procedure codes |
| Paid by Medicare | $346,600 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,730 · 16,508 30-day fills |
|---|---|
| Patients | 561 |
| Total drug cost | $641,105 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Arkansas College of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Internal Medicine |
Medical group
- St Vincent Medical GroupLittle Rock, AR · 240 clinicians
Hospital affiliations
- Baptist Health Medical Center-Little RockLittle Rock, AR
- Chi St. Vincent Hospital Hot SpringsHot Springs, AR
- Chi-St Vincent InfirmaryLittle Rock, AR
Other facilities
- Baptist Health Home Health-LrHome health agency · Little Rock, AR
- Care IV Home HealthHome health agency · Little Rock, AR
- Elite Home HealthHome health agency · Little Rock, AR
- Baptist Health Rehabilitation InstituteInpatient rehabilitation facility · Little Rock, AR
Industry payments (Open Payments)
- 2025$173.97 · 10 payments from 4 companies
- 2024$166.54 · 9 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $64.27 | 4 |
| Lilly USA, LLC | $47.65 | 3 |
| Sanofi-Aventis U.S. LLC | $33.19 | 1 |
| Glaxosmithkline, LLC. | $28.86 | 2 |
What the 2025 payments were for
- Food and Beverage$173.97 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 251 internal medicine physicians in Little Rock · All internal medicine physicians in Arkansas