Arthur Vermeulen, MD
NPI 1598324055ActiveIndividual· Internal Medicine· Los Angeles, CA
Internal Medicine (MD) with Exer Medical Corporation, practicing in Los Angeles, California. Their prescriptions cost Medicare Part D more than their services did: $2,763,439 for 3,455 claims, against $2,980 paid for services in 2024. Viiv Healthcare Company was the largest of 20 companies reporting payments in 2025, $2,996 in all, mostly food and beverage.
Overview
| NPI | 1598324055 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 10, 2019 |
| Last updated in NPPES | Feb 6, 2023 |
| Certified by provider | Feb 6, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A178323 | CA |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 23 |
|---|---|
| Services billed | 48 across 19 procedure codes |
| Paid by Medicare | $2,980 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,455 · 4,242 30-day fills |
|---|---|
| Patients | 273 |
| Total drug cost | $2,763,439 |
| Generic share | 72% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Exer Medical CorporationHighland, CA · 340 clinicians
Industry payments (Open Payments)
- 2025$2,996 · 116 payments from 20 companies
- 2024$2,474 · 97 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $931.14 | 36 |
| Gilead Sciences, Inc. | $529.23 | 19 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $198.52 | 9 |
| Emd Serono, Inc. | $170.96 | 5 |
| Janssen Pharmaceuticals, Inc | $164.81 | 4 |
What the 2025 payments were for
- Food and Beverage$2,996 · 116 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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