Justin Michael Besen, MD
NPI 1821475542ActiveIndividual· Dermatology· Dartmouth, MA
Dermatology (MD) in Dartmouth, Massachusetts, trained at Boston University School of Medicine (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $1,072,057 for 1,451 claims, against $167,671 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $1,405 in all, mostly food and beverage.
Overview
| NPI | 1821475542 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 1, 2015 |
| Last updated in NPPES | Jan 6, 2020 |
| Certified by provider | Jan 6, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 280093 | MA |
| Student in an Organized Health Care Education/Training Program | 390200000X | 263286 | MA |
| Dermatology | 207N00000X | A144733 | CA |
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 - Dermatology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 734 |
|---|---|
| Services billed | 2,976 across 53 procedure codes |
| Paid by Medicare | $167,671 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,451 · 1,897 30-day fills |
|---|---|
| Patients | 420 |
| Total drug cost | $1,072,057 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Dermatology |
Medical group
- Dartmouth Dermatology Associates, PCDartmouth, MA · 9 clinicians
Hospital affiliation
- Southcoast Hospitals GroupFall River, MA
Industry payments (Open Payments)
- 2025$1,405 · 78 payments from 14 companies
- 2024$1,031 · 49 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $301.97 | 26 |
| Leo Pharma Inc. | $255.68 | 10 |
| Janssen Biotech, Inc. | $185.35 | 13 |
| Novartis Pharmaceuticals Corporation | $110.63 | 5 |
| Incyte Corporation | $106.57 | 4 |
What the 2025 payments were for
- Food and Beverage$1,324 · 76 payments
- Education$81.65 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Dermatology providers in Dartmouth
- 1942360003
- 1083064208
- 1629006093
- 1477551398