Allen Si-Liang Zhou, MD
Otolaryngology · 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. Zhou’s office to ask if they take your plan before you enroll.
Drugs they prescribed that Part D paid
$655
Pharmacies billed $655 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 24% of their Part D prescriptions (17 of 70) in 2024. A higher opioid share than 9 in 10 peers; the typical otolaryngology clinician is at 4%.
69 generic and fewer than 11 brand-name prescriptions · $655 in drug cost · 27 antibiotic prescriptions to 27 people.
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.
| Cephalexin | 13 | $100 | $8 |
| Oxycodone | 17 | $33 | $2 |
Year by year
| 2024 | 70 | 51 | 24% (17) | None | $655 |
| 2023 | 113 | 84 | 26% (29) | 11% | $3,411 |
| 2022 | 96 | 69 | 26% (25) | None | $2,365 |
| 2021 | 113 | 56 | 32% (36) | 10% | $6,838 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 1 drug
| Oxycodone | 27 | $56 | $2 |
2022: 2 drugs
| Oxycodone | 22 | $89 | $4 |
| Cephalexin | 12 | $73 | $6 |
2021: 1 drug
| Oxycodone | 29 | $111 | $4 |
Professional record
- NPI
- 1407435910
- Trained
- Harvard Medical School, 2021
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Otolaryngology (207Y00000X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2021-04-03
- NPI last updated
- 2026-07-01
- NPI record certified
- 2026-07-01
This is when the NPI record was last certified, not a medical board exam.