Mark Dean Vannorsdall, M.D.
NPI 1336141555ActiveIndividual· Internal Medicine, Nephrology· Pensacola, FL
Internal Medicine, Nephrology (M.D.) in Pensacola, Florida, trained at Warren Alpert Medical School of Brown University (class of 1996). In 2024 Medicare paid $288,554 for 832 patients, and Part D covered 1,693 of their prescriptions, 82% of them generic. Otsuka America Pharmaceutical, Inc. was the largest of 11 companies reporting payments in 2025, $400.07 in all, mostly food and beverage.
Overview
| NPI | 1336141555 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 1, 2005 |
| Last updated in NPPES | Dec 28, 2021 |
| Certified by provider | Dec 28, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | ME137397 | FL |
| Internal Medicine, Nephrology | 207RN0300X | MD14683 | ME |
| Internal Medicine, Nephrology | 207RN0300X | MD.23695 | 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 (FL); Practitioner - Nephrology (ME) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 832 |
|---|---|
| Services billed | 3,221 across 38 procedure codes |
| Paid by Medicare | $288,554 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,693 · 4,164 30-day fills |
|---|---|
| Patients | 334 |
| Total drug cost | $207,515 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Warren Alpert Medical School of Brown University |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical groups
- Pensacola Nephrology PAPensacola, FL · 37 clinicians
- Fresenius Vascular Care Pensacola LLCPensacola, FL · 6 clinicians
Hospital affiliations
- Baptist HospitalPensacola, FL
- Gulf Breeze HospitalGulf Breeze, FL
- HCA Florida West HospitalPensacola, FL
- Sacred Heart HospitalPensacola, FL
- Santa Rosa Medical CenterMilton, FL
Other facilities
- Davita Santa Rosa DialysisDialysis facility · Milton, FL
- Fmc - MiltonDialysis facility · Milton, FL
- Rcg - Baptist NorthDialysis facility · Pensacola, FL
- Select Specialty Hospital PensacolaLong-term care hospital · Pensacola, FL
Industry payments (Open Payments)
- 2025$400.07 · 17 payments from 11 companies
- 2024$739.16 · 37 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $70.98 | 3 |
| Travere Therapeutics, Inc. | $56.22 | 3 |
| Astrazeneca Pharmaceuticals LP | $52.09 | 2 |
| Amgen Inc. | $36.16 | 2 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | $32.68 | 1 |
What the 2025 payments were for
- Food and Beverage$400.07 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 nephrologists in Pensacola · All nephrologists in Florida