Steven Koerner, DO
NPI 1558434308ActiveIndividual· Internal Medicine, Gastroenterology· Manahawkin, NJ
Internal Medicine, Gastroenterology (DO) in Manahawkin, New Jersey, trained at R Franklin University of Med & Sci/Chicago Medical School (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $929,625 for 1,349 claims, against $145,798 paid for services in 2024. Janssen Biotech, Inc. was the largest of 9 companies reporting payments in 2025, $266.12 in all, mostly food and beverage.
Overview
| NPI | 1558434308 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Nov 16, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MB55609 | 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 | 735 |
|---|---|
| Services billed | 1,331 across 33 procedure codes |
| Paid by Medicare | $145,798 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,349 · 3,502 30-day fills |
|---|---|
| Patients | 421 |
| Total drug cost | $929,625 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | R Franklin University of Med & Sci/Chicago Medical School |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Gastroenterology |
Medical group
- Hackensack Meridian Health Medical Group - Specialty Care PCHackensack, NJ · 1,922 clinicians
Hospital affiliation
- Southern Ocean Medical CenterManahawkin, NJ
Industry payments (Open Payments)
- 2025$266.12 · 15 payments from 9 companies
- 2024$480.08 · 28 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $90.47 | 5 |
| Abbvie Inc. | $52.98 | 3 |
| Madrigal Pharmaceuticals | $20.11 | 1 |
| Intercept Pharmaceuticals, Inc. | $18.96 | 1 |
| Gilead Sciences, Inc. | $18.43 | 1 |
What the 2025 payments were for
- Food and Beverage$266.12 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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