Doctor profile · Federal record
Dr. Timothy Tsai, DO
Family Medicine Physician (CMS: Family Practice) · Stanford, CA
- NPI 1447785704
- Accepts Medicare
- 9 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Credentials & registration
- NPI registered
- April 2017 — 9 yrs on file
- Profile last updated
- April 17, 2024
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #20A20059
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447785704. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
292
Distinct HCPCS
6
Medicare allowed
$26,123
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 103 | 80 | $71 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 69 | 55 | $99 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 47 | 47 | $117 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 28 | 25 | $49 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 25 | 25 | $92 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 20 | 18 | $139 |
In context: peer comparison
Among 25 peers in Stanford Family Medicine Physician, average services per provider: 45. This provider delivers 6.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
307
Patients
61
Total drug cost
$17,717
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 45 | 20 | $678 |
| Atorvastatin Calcium | Generic | 44 | 17 | $545 |
| Metformin Hcl | Generic | 31 | 11 | $201 |
| Losartan Potassium | Generic | 28 | 0 | $358 |
| Levothyroxine Sodium | Generic | 21 | 13 | $280 |
| Lisinopril | Generic | 18 | 0 | $95 |
| Rosuvastatin Calcium | Generic | 16 | 0 | $656 |
| Metoprolol Succinate | Generic | 15 | 0 | $225 |
| Losartan-Hydrochlorothiazide (Losartan/Hydrochlorothiazide) | Brand | 14 | 0 | $424 |
| Alendronate Sodium | Generic | 13 | 0 | $311 |
Hospital affiliations
Frequently asked questions
What is Dr. Timothy Tsai's medical specialty?
Dr. Timothy Tsai practices Family Medicine Physician in Stanford, CA.
Where does Dr. Timothy Tsai practice?
Dr. Timothy Tsai practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Timothy Tsai's NPI?
Dr. Timothy Tsai's National Provider Identifier (NPI) is 1447785704, issued by NPPES.
Does Dr. Timothy Tsai accept Medicare assignment?
Yes. Dr. Timothy Tsai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Timothy Tsai commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.