Doctor profile · Federal record
Dr. Vivian Tsai, M.D.
Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Internal Medicine Physician · Fremont, CA
- NPI 1770534182
- Accepts Medicare
- 23 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3200 Kearney Street
Fremont, CA 945382299
(510) 490-1222 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- May 28, 2020
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207RC0000X — NUCC code
- State license (1)
- California #A88245
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770534182. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,475
Distinct HCPCS
10
Medicare allowed
$314,659
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 456 | 251 | $153 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 422 | 400 | $18 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 360 | 188 | $213 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 289 | 289 | $256 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 116 | 36 | $135 | |
93246 |
Heart rhythm recording of continous external ekg over 8-15 days | 115 | 110 | $16 | |
93248 |
Heart rhythm review and interpretation of continous external ekg over 8-15 days | 114 | 109 | $29 | |
93356 |
Heart muscle strain imaging | 94 | 92 | $49 | |
J2785 |
Injection, regadenoson, 0.1 mg | 68 | 17 | $53 | |
Q9957 |
Injection, perflutren lipid microspheres, per ml | 62 | 36 | $46 |
In context: peer comparison
Among 5 peers in Fremont Cardiovascular Disease Physician, average services per provider: 294. This provider delivers 8.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
3,440
Patients
953
Total drug cost
$560,943
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 655 | 184 | $10,173 |
| Metoprolol Succinate | Generic | 484 | 135 | $9,746 |
| Amlodipine Besylate | Generic | 416 | 113 | $5,881 |
| Eliquis (Apixaban) | Brand | 351 | 86 | $500,343 |
| Rosuvastatin Calcium | Generic | 217 | 61 | $6,792 |
| Carvedilol | Generic | 201 | 51 | $3,033 |
| Losartan Potassium | Generic | 199 | 57 | $4,132 |
| Furosemide | Generic | 182 | 56 | $1,409 |
| Lisinopril | Generic | 156 | 41 | $1,790 |
| Valsartan | Generic | 110 | 29 | $5,226 |
Frequently asked questions
What is Dr. Vivian Tsai's medical specialty?
Dr. Vivian Tsai practices Cardiovascular Disease Physician in Fremont, CA.
Where does Dr. Vivian Tsai practice?
Dr. Vivian Tsai practices at 3200 Kearney Street, Fremont, CA 945382299. Office phone: 5104901222.
What is Dr. Vivian Tsai's NPI?
Dr. Vivian Tsai's National Provider Identifier (NPI) is 1770534182, issued by NPPES.
Does Dr. Vivian Tsai accept Medicare assignment?
Yes. Dr. Vivian Tsai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Vivian Tsai commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.