John Michael Nipper, M.D.
NPI 1083690465ActiveIndividual· Internal Medicine, Nephrology· Mobile, AL
Internal Medicine, Nephrology (M.D.) in Mobile, Alabama, trained at University of Mississippi School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $308,727 for 2,029 claims, against $164,334 paid for services in 2024. Amgen Inc. was the largest of 10 companies reporting payments in 2025, $561.90 in all, mostly food and beverage.
Overview
| NPI | 1083690465 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 19, 2005 |
| Last updated in NPPES | Aug 12, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 24016 | AL |
| Specialist, Graphics Designer | 1744G0900X | 24016 | AL |
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 (AL); Practitioner - Nephrology (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 308 |
|---|---|
| Services billed | 7,722 across 46 procedure codes |
| Paid by Medicare | $164,334 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,029 · 3,515 30-day fills |
|---|---|
| Patients | 255 |
| Total drug cost | $308,727 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Mississippi School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Nephrology |
Medical groups
- Nephrology Associates of Mobile, P.A.Mobile, AL · 41 clinicians
- Mobile Vascular Labs LLCMobile, AL · 4 clinicians
Hospital affiliations
- George Regional Health SystemLucedale, MS
- Grove Hill Memorial HospitalGrove Hill, AL
- Mobile Infirmary Medical CenterMobile, AL
- Springhill Medical CenterMobile, AL
- USA Health HCA Providence Hospital, LLCMobile, AL
Other facilities
- Fmc Monroeville (Whetstone)Dialysis facility · Monroeville, AL
- Fmc South MobileDialysis facility · Grand Bay, AL
Industry payments (Open Payments)
- 2025$561.90 · 28 payments from 10 companies
- 2024$397.00 · 21 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $215.92 | 13 |
| Novartis Pharmaceuticals Corporation | $88.22 | 3 |
| Scpharmaceuticals Inc. | $80.53 | 3 |
| Calliditas Therapeutics US Inc. | $38.06 | 2 |
| Otsuka America Pharmaceutical, Inc. | $36.17 | 2 |
What the 2025 payments were for
- Food and Beverage$561.90 · 28 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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