Morris R. Hamilton, MD
NPI 1649240599ActiveIndividual· Internal Medicine, Nephrology· Tupelo, MS
Internal Medicine, Nephrology (MD) in Tupelo, Mississippi, trained at University of Mississippi School of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $496,272 for 2,099 claims, against $180,152 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 16 companies reporting payments in 2025, $1,007 in all, mostly food and beverage.
Overview
| NPI | 1649240599 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 24, 2006 |
| Last updated in NPPES | Jun 30, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 10278 | 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 - Nephrology (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 510 |
|---|---|
| Services billed | 2,650 across 25 procedure codes |
| Paid by Medicare | $180,152 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,099 · 3,454 30-day fills |
|---|---|
| Patients | 271 |
| Total drug cost | $496,272 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Mississippi School of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Nephrology |
Medical group
- Nephrology and Hypertension Associates LtdTupelo, MS · 19 clinicians
Hospital affiliations
- Baptist Memorial Hospital North MsOxford, MS
- Baptist Memorial Hospital Union CountyNew Albany, MS
- Greenwood Leflore HospitalGreenwood, MS
- Panola Medical CenterBatesville, MS
- University of Mississippi Medical Center- GrenadaGrenada, MS
Other facilities
- Rcg GrenadaDialysis facility · Grenada, MS
- Rcg Oxford (Yokna River)Dialysis facility · Oxford, MS
- Rcg Oxford Home TherapyDialysis facility · Oxford, MS
Industry payments (Open Payments)
- 2025$1,007 · 42 payments from 16 companies
- 2024$1,144 · 54 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $180.78 | 8 |
| Novartis Pharmaceuticals Corporation | $136.28 | 5 |
| Otsuka America Pharmaceutical, Inc. | $117.06 | 5 |
| Calliditas Therapeutics US Inc. | $96.10 | 4 |
| Travere Therapeutics, Inc. | $63.07 | 2 |
What the 2025 payments were for
- Food and Beverage$948.28 · 40 payments
- Education$58.32 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Nephrology providers in Mississippi →