Lily Yu-An Chen, DO
Internal Medicine · Pasadena
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Offices
- 2
Offices
2 locations
Looking this up.
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Chen’s office to ask if they take your plan before you enroll.
Money from drug and device companies
$125 in 2025
| 2025 | 3 | 5 | None | $125 |
| 2024 | 1 | 1 | None | $20 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Regeneron Healthcare Solutions | Dupixent | $64 | 2 payments
|
| Pfizer | Eliquis | $42 | 2 payments
|
| Radius Health | Tymlos | $19 | 1 payment
|
See all 5 published payments
| Regeneron Healthcare Solutions | Meals · 2025-11-20 | Dupixent | $29 |
| Pfizer | Meals · 2025-11-03 | Eliquis | $20 |
| Pfizer | Meals · 2025-07-23 | Eliquis | $23 |
| Regeneron Healthcare Solutions | Meals · 2025-05-23 | Dupixent | $35 |
| Radius Health | Meals · 2025-03-17 | Tymlos | $19 |
See earlier years (2024)
2024: $20
| Radius Health | Tymlos | $20 | 1 payment
|
Professional record
- NPI
- 1164107991
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Internal medicine (207R00000X); Student in a training program (390200000X)
- Mailing address
- 225 N Jackson Ave, San Jose, CA, 95116
- NPI first listed
- 2023-06-19
- NPI last updated
- 2026-06-15
- NPI record certified
- 2026-06-15
This is when the NPI record was last certified, not a medical board exam.