Audrey Liyang Chai, MD
Internal Medicine · Palo Alto
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
Offices
1 location
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. Chai’s office at (650) 723-4000 to ask if they take your plan before you enroll.
Drugs they prescribed that Part D paid
$7,604
Pharmacies billed $7,604 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
39 generic and 27 brand-name prescriptions · $7,604 in drug cost.
Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.
| Albuterol Sulfate Hfa | 16 | $609 | $38 |
Year by year
| 2024 | 66 | 20 | None | 41% | $7,604 |
| 2023 | 143 | 31 | None | None | $16,932 |
| 2022 | 213 | 52 | None | None | $26,999 |
| 2021 | 152 | 47 | 0% (0) | None | $7,763 |
| 2020 | 46 | 13 | 0% (0) | None | $5,135 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 2 drugs
| Metformin | 11 | $126 | $11 |
| Lisinopril | 11 | $58 | $5 |
2022: 3 drugs
| Atorvastatin | 17 | $376 | $22 |
| Metformin | 14 | $227 | $16 |
| Spironolactone | 13 | $105 | $8 |
2021: 2 drugs
| Atorvastatin | 12 | $267 | $22 |
| Anastrozole | 12 | $141 | $12 |
Money from drug and device companies
$125 in 2025
A payment is not proof that care is biased.
| Boehringer Ingelheim Pharmaceuticals | None | $125 | 1 payment
|
See the published payment
| Boehringer Ingelheim Pharmaceuticals | Meals · 2025-08-14 | None | $125 |
Professional record
- NPI
- 1649807835
More record details
- Sole proprietor
- No
- Taxonomy
- Internal medicine (207R00000X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2020-03-26
- NPI last updated
- 2026-07-20
- NPI record certified
- 2026-07-20
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 500 Pasteur Dr, Palo Alto, CA, 94304