Melissa Ann Diener, M.D.
NPI 1316106347ActiveIndividual· Internal Medicine, Gastroenterology· Sewell, NJ
Internal Medicine, Gastroenterology (M.D.) in Sewell, New Jersey, trained at New York University School of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $447,365 for 844 claims, against $68,162 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 7 companies reporting payments in 2025, $729.58 in all, mostly food and beverage.
Overview
| NPI | 1316106347 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 5, 2008 |
| Last updated in NPPES | May 8, 2026 |
| Certified by provider | May 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 25MA09438500 | NJ |
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 - Gastroenterology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 323 |
|---|---|
| Services billed | 1,438 across 37 procedure codes |
| Paid by Medicare | $68,162 |
Part D prescriptions in 2024
| Prescriptions (claims) | 844 · 1,582 30-day fills |
|---|---|
| Patients | 272 |
| Total drug cost | $447,365 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Virtua Medical Group, PACherry Hill, NJ · 1,688 clinicians
- Advocare, LLCHaddonfield, NJ · 386 clinicians
Hospital affiliations
- Jefferson Stratford HospitalStratford, NJ
- West Jersey HospitalVoorhees, NJ
Industry payments (Open Payments)
- 2025$729.58 · 40 payments from 7 companies
- 2024$123.64 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $254.48 | 9 |
| Abbvie Inc. | $150.99 | 10 |
| Ardelyx, Inc. | $105.25 | 5 |
| Janssen Biotech, Inc. | $71.01 | 4 |
| Lilly USA, LLC | $66.66 | 4 |
What the 2025 payments were for
- Food and Beverage$729.58 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Sewell
- 1659573525
- 1447258777