Yunying Chen, NP
NPI 1558944520ActiveIndividual· Nurse Practitioner· Los Angeles, CA
Nurse Practitioner (NP) with The Regents of the University of California, practicing in Los Angeles, California. Their prescriptions cost Medicare Part D more than their services did: $925,065 for 317 claims, against $6,719 paid for services in 2024. Pfizer Inc. was the largest of 15 companies reporting payments in 2025, $32,435 in all, mostly speaking and faculty fees. Lists Ronald Reagan UCLA Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1558944520 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Apr 28, 2021 |
| Last updated in NPPES | Nov 9, 2023 |
| Certified by provider | Nov 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 95015613 | CA |
| Nurse Practitioner, Acute Care | 363LA2100X | 95015613 | 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 - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 48 |
|---|---|
| Services billed | 135 across 4 procedure codes |
| Paid by Medicare | $6,719 |
Part D prescriptions in 2024
| Prescriptions (claims) | 317 · 418 30-day fills |
|---|---|
| Patients | 71 |
| Total drug cost | $925,065 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- The Regents of the University of CaliforniaSanta Monica, CA · 1,462 clinicians
Hospital affiliations
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
- Santa Monica - UCLA Med Ctr & Orthopaedic HospitalSanta Monica, CA
Industry payments (Open Payments)
- 2025$32,435 · 81 payments from 15 companies
- 2024$29,794 · 63 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $21,288 | 29 |
| Rigel Pharmaceuticals, Inc. | $7,890 | 11 |
| Autolus Inc | $2,159 | 4 |
| Janssen Biotech, Inc. | $511.97 | 20 |
| Incyte Corporation | $124.99 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$14,765 · 9 payments
- Travel and Lodging$6,576 · 19 payments
- Consulting Fee$6,375 · 3 payments
- Honoraria$2,644 · 2 payments
- Food and Beverage$2,032 · 47 payments
- Education$43.25 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Nurse Practitioner providers in Los Angeles
- 1396543112
- 1104231828
- 1427140136
- 1871685594
- 1053218719
- 1417854175
- 1235036997
- 1134026891
- 1154200475
- 1881319671
- 1720619588
- 1669531737