Joseph W. Warren, M.D.
NPI 1952394058ActiveIndividual· Internal Medicine, Nephrology· Orlando, FL
Internal Medicine, Nephrology (M.D.) in Orlando, Florida, trained at West Virginia University School of Medicine (class of 1970). Their prescriptions cost Medicare Part D more than their services did: $536,235 for 4,880 claims, against $202,733 paid for services in 2024. Otsuka America Pharmaceutical, Inc. was the largest of 12 companies reporting payments in 2025, $874.38 in all, mostly food and beverage.
Overview
| NPI | 1952394058 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 24, 2005 |
| Last updated in NPPES | Dec 22, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | ME0030906 | FL |
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 - Nephrology (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 373 |
|---|---|
| Services billed | 5,411 across 49 procedure codes |
| Paid by Medicare | $202,733 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,880 · 9,452 30-day fills |
|---|---|
| Patients | 397 |
| Total drug cost | $536,235 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | West Virginia University School of Medicine |
|---|---|
| Graduation year | 1970 |
| Medicare specialty | Nephrology |
Medical group
- Nephrology Associates of Central Florida, P.A.Orlando, FL · 34 clinicians
Hospital affiliations
- Adventhealth DelandDeland, FL
- Adventhealth OrlandoOrlando, FL
- Orlando HealthOrlando, FL
Other facilities
- Davita Casselberry DialysisDialysis facility · Casselberry, FL
- Davita Winter Park Home Pd DialysisDialysis facility · Winter Park, FL
- Fresenius Kidney Care Winter ParkDialysis facility · Winter Park, FL
- Fresenius Kidney Care CasselberryDialysis facility · Casselberry, FL
- Orlando Artificial Kidney CenterDialysis facility · Altamonte Springs, FL
- Adventhealth Home HealthHome health agency · Altamonte Springs, FL
Industry payments (Open Payments)
- 2025$874.38 · 40 payments from 12 companies
- 2024$717.26 · 33 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $199.81 | 7 |
| Opko Pharmaceuticals, LLC | $156.16 | 8 |
| Novartis Pharmaceuticals Corporation | $117.93 | 5 |
| Amgen Inc. | $77.90 | 4 |
| Astrazeneca Pharmaceuticals LP | $63.85 | 3 |
What the 2025 payments were for
- Food and Beverage$717.83 · 31 payments
- Education$156.55 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Nephrology providers in Orlando
- 1346954138
- 1205490091
- 1508114141
- 1265747828
- 1508130527
- 1003144197
- 1689821241
- 1053668228
- 1144686585
- 1982890190
- 1154664654
- 1568436418