Jane W. Chien, MD
NPI 1588620785ActiveIndividual· Internal Medicine· Los Gatos, CA
Internal Medicine (MD) in Los Gatos, California, trained at Stanford University School of Medicine (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $287,332 for 6,489 claims, against $181,664 paid for services in 2024. Amgen Inc. was the largest of 8 companies reporting payments in 2025, $261.61 in all, mostly food and beverage.
Overview
| NPI | 1588620785 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 25, 2006 |
| Last updated in NPPES | Apr 13, 2025 |
| Certified by provider | Apr 13, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A55106 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 538 |
|---|---|
| Services billed | 3,341 across 25 procedure codes |
| Paid by Medicare | $181,664 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,489 · 17,146 30-day fills |
|---|---|
| Patients | 630 |
| Total drug cost | $287,332 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- El Camino HealthMountain View, CA
- Good Samaritan HospitalSan Jose, CA
- Stanford Health CareStanford, CA
Other facilities
- Ace Home Health Care & Hospice, IncHome health agency · Orinda, CA
- Health Link Home Health AgencyHome health agency · San Francisco, CA
- Ready2nurseHome health agency · San Jose, CA
- Vn Home Health CareHome health agency · San Jose, CA
Industry payments (Open Payments)
- 2025$261.61 · 12 payments from 8 companies
- 2024$219.39 · 11 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $73.48 | 3 |
| Lilly USA, LLC | $42.02 | 2 |
| Pfizer Inc. | $35.66 | 2 |
| Seqirus USA Inc | $32.39 | 1 |
| Exact Sciences Corporation | $25.26 | 1 |
What the 2025 payments were for
- Food and Beverage$261.61 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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