Brian Chen, MSN, AGNP
NPI 1629726500ActiveIndividual· Nurse Practitioner, Adult Health· Duarte, CA
Nurse Practitioner, Adult Health (MSN, AGNP) with City of Hope Medical Foundation, practicing in Duarte, California. Their prescriptions cost Medicare Part D more than their services did: $210,081 for 203 claims, against $1,171 paid for services in 2024. Astellas Pharma US Inc was the largest of 11 companies reporting payments in 2025, $898.87 in all, mostly food and beverage.
Overview
| NPI | 1629726500 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MSN, AGNP |
| Sole proprietor | No |
| NPI issued | Mar 10, 2022 |
| Last updated in NPPES | Mar 10, 2022 |
| Certified by provider | Mar 10, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Adult Health Primary | 363LA2200X | 95018765 | 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 - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 19 |
|---|---|
| Services billed | 20 across 4 procedure codes |
| Paid by Medicare | $1,171 |
Part D prescriptions in 2024
| Prescriptions (claims) | 203 · 213 30-day fills |
|---|---|
| Patients | 70 |
| Total drug cost | $210,081 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- City of Hope Medical FoundationDuarte, CA · 982 clinicians
Industry payments (Open Payments)
- 2025$898.87 · 29 payments from 11 companies
- 2024$504.64 · 14 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $328.40 | 11 |
| Daiichi Sankyo Inc. | $187.11 | 7 |
| Melinta Therapeutics, LLC | $64.74 | 2 |
| Glaxosmithkline, LLC. | $63.80 | 2 |
| E.R. Squibb & Sons, L.L.C. | $62.32 | 1 |
What the 2025 payments were for
- Food and Beverage$759.30 · 26 payments
- Education$139.57 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 18 adult health nurse practitioners in Duarte · All adult health nurse practitioners in California