Mark Warren, M.D.
NPI 1629073010ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Greenville, NC
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Greenville, North Carolina, trained at University of North Carolina at Chapel Hill School of Medicine (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $5,085,627 for 12,505 claims, against $834,901 paid for services in 2024. Ascendis Pharma Endocrinology Inc was the largest of 24 companies reporting payments in 2025, $128,259 in all, mostly speaking and faculty fees.
Overview
| NPI | 1629073010 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 14, 2005 |
| Last updated in NPPES | Jun 29, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 37973 | NC |
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 - Endocrinology (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 925 |
|---|---|
| Services billed | 55,297 across 122 procedure codes |
| Paid by Medicare | $834,901 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,505 · 23,401 30-day fills |
|---|---|
| Patients | 816 |
| Total drug cost | $5,085,627 |
| Generic share | 50% of claims |
Education and affiliations
| Medical school | University of North Carolina at Chapel Hill School of Medicine |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Endocrinology |
Medical group
- Physicians East PABeulaville, NC · 104 clinicians
Hospital affiliation
- Ecu Health Medical CenterGreenville, NC
Other facilities
- 3hcHome health agency · Goldsboro, NC
Industry payments (Open Payments)
- 2025$128,259 · 205 payments from 24 companies
- 2024$65,630 · 190 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ascendis Pharma Endocrinology Inc | $87,206 | 93 |
| Amgen Inc. | $25,321 | 42 |
| Abbott Laboratories | $8,135 | 19 |
| Lilly USA, LLC | $5,467 | 8 |
| Senseonics, Incorporated | $800.00 | 2 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$105,591 · 44 payments
- Travel and Lodging$11,393 · 65 payments
- Consulting Fee$6,000 · 1 payment
- Food and Beverage$4,536 · 92 payments
- Compensation for serving as faculty or as a speaker for a medical education program$700.00 · 1 payment
- Education$39.97 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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