Jeremy J. Janssen, M.D.
NPI 1255414371ActiveIndividual· Family Medicine· Gaithersburg, MD
Family Medicine (M.D.) in Gaithersburg, Maryland, trained at Howard University College of Medicine (class of 1998). 314 Medicare patients in 2024, $119,435 paid; nearly all of their 349 Part D prescriptions were generic (90%). Astrazeneca Pharmaceuticals LP was the largest of 11 companies reporting payments in 2025, $331.67 in all, mostly food and beverage.
Overview
| NPI | 1255414371 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 23, 2006 |
| Last updated in NPPES | Jan 10, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | D0057305 | MD |
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 - Family Practice (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 314 |
|---|---|
| Services billed | 1,690 across 44 procedure codes |
| Paid by Medicare | $119,435 |
Part D prescriptions in 2024
| Prescriptions (claims) | 349 · 829 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $27,397 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Howard University College of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Other facilities
- Adventist Home Health Services, Inc.Home health agency · Silver Spring, MD
- Centerwell Home HealthHome health agency · Columbia, MD
- Adventist Healthcare Rehabilitation at RockvilleInpatient rehabilitation facility · Rockville, MD
Industry payments (Open Payments)
- 2025$331.67 · 16 payments from 11 companies
- 2024$521.60 · 23 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $71.36 | 3 |
| Exact Sciences Corporation | $43.11 | 2 |
| Lilly USA, LLC | $42.71 | 2 |
| Merck Sharp & Dohme LLC | $39.16 | 2 |
| Pfizer Inc. | $22.81 | 1 |
What the 2025 payments were for
- Food and Beverage$331.67 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Gaithersburg
- 1235558594
- 1598955494
- 1699983858
- 1700877305
- 1760913826
- 1881765170
- 1295945830
- 1467981167
- 1194940866
- 1326545427
- 1386901932
- 1578957932
All 42 family medicine physicians in Gaithersburg · All family medicine physicians in Maryland