Jeffrey W. Dennis, MD
NPI 1386750909ActiveIndividual· Internal Medicine· Oxford, MS
Internal Medicine (MD) in Oxford, Mississippi, trained at University of Mississippi School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $1,655,732 for 21,809 claims, against $996,267 paid for services in 2024. Pfizer Inc. was the largest of 24 companies reporting payments in 2025, $2,500 in all, mostly food and beverage.
Overview
| NPI | 1386750909 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 23, 2006 |
| Last updated in NPPES | Apr 4, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 17434 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,435 |
|---|---|
| Services billed | 68,695 across 126 procedure codes |
| Paid by Medicare | $996,267 |
Part D prescriptions in 2024
| Prescriptions (claims) | 21,809 · 37,385 30-day fills |
|---|---|
| Patients | 1,250 |
| Total drug cost | $1,655,732 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Mississippi School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Internal Medicine |
Medical group
- Internal Medicine Associates of OxfordOxford, MS · 7 clinicians
Hospital affiliations
- Baptist Memorial HospitalMemphis, TN
- Baptist Memorial Hospital North MsOxford, MS
- Baptist Memorial Hospital Union CountyNew Albany, MS
- Panola Medical CenterBatesville, MS
- University of Mississippi Medical Center- GrenadaGrenada, MS
Other facilities
- Accentcare Home Health of GreenwoodHome health agency · Greenwood, MS
- Arden Home Health of North Mississippi, LLCHome health agency · Oxford, MS
- Baptist Home Care and Hospice North MississippiHome health agency · Batesville, MS
- Centerwell Home HealthHome health agency · Tupelo, MS
Industry payments (Open Payments)
- 2025$2,500 · 163 payments from 24 companies
- 2024$1,994 · 135 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $245.28 | 19 |
| Abbvie Inc. | $243.61 | 14 |
| Lilly USA, LLC | $243.03 | 17 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $240.67 | 27 |
| Amgen Inc. | $236.53 | 16 |
What the 2025 payments were for
- Food and Beverage$2,500 · 163 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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