Leana Chien, CNS-BC, NP-BC
NPI 1215252010ActiveIndividual· Nurse Practitioner, Gerontology· Duarte, CA
Nurse Practitioner, Gerontology (CNS-BC, NP-BC) with City of Hope Medical Foundation and 1 other group, practicing in Duarte, California. Medicare paid $9,548 for services to 35 patients in 2024. Astrazeneca Pharmaceuticals LP was the largest of 10 companies reporting payments in 2025, $1,137 in all, mostly food and beverage.
Overview
| NPI | 1215252010 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CNS-BC, NP-BC |
| Sole proprietor | Yes |
| NPI issued | Apr 5, 2010 |
| Last updated in NPPES | Nov 24, 2020 |
| Certified by provider | Nov 24, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | 18898 | 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 | 35 |
|---|---|
| Services billed | 116 across 7 procedure codes |
| Paid by Medicare | $9,548 |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- City of Hope Medical FoundationDuarte, CA · 982 clinicians
- Congregational HomesPomona, CA · 17 clinicians
Other facilities
- Progress Home Health Care IncHome health agency · Glendale, CA
Industry payments (Open Payments)
- 2025$1,137 · 12 payments from 10 companies
- 2024$443.29 · 6 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $235.08 | 2 |
| Gilead Sciences, Inc. | $135.00 | 1 |
| Karyopharm Therapeutics Inc. | $128.22 | 1 |
| E.R. Squibb & Sons, L.L.C. | $125.00 | 1 |
| Agios Pharmaceuticals, Inc. | $125.00 | 1 |
What the 2025 payments were for
- Food and Beverage$1,038 · 11 payments
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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