Fabian Dammann, MD
NPI 1407377104ActiveIndividual· Internal Medicine, Infectious Disease· Newark, NJ
Internal Medicine, Infectious Disease (MD) with Chase Brexton Health Services Inc, practicing in Newark, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $5,308,548 for 4,359 claims, against $109.56 paid for services in 2024. Gilead Sciences, Inc. was the largest of 4 companies reporting payments in 2025, $792.03 in all, mostly food and beverage.
Overview
| NPI | 1407377104 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 3, 2017 |
| Last updated in NPPES | Aug 26, 2026 |
| Certified by provider | Aug 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 25MA13011600 | NJ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Infectious Disease (MD); Practitioner - Internal Medicine (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 13 |
|---|---|
| Services billed | 16 across 5 procedure codes |
| Paid by Medicare | $109.56 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,359 · 5,217 30-day fills |
|---|---|
| Patients | 195 |
| Total drug cost | $5,308,548 |
| Generic share | 57% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
Medical group
- Chase Brexton Health Services IncBaltimore, MD · 121 clinicians
Industry payments (Open Payments)
- 2025$792.03 · 18 payments from 4 companies
- 2024$485.17 · 11 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $665.72 | 13 |
| Merck Sharp & Dohme LLC | $51.82 | 3 |
| Viiv Healthcare Company | $46.77 | 1 |
| Baxter Healthcare | $27.72 | 1 |
What the 2025 payments were for
- Food and Beverage$764.31 · 17 payments
- Long term medical supply or device loan$27.72 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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