Doctor profile · Federal record
Dr. Elizabeth Tsai, D.O.
Internal Medicine Physician (CMS: Internal Medicine) · Tustin, CA
- NPI 1629284971
- Accepts Medicare
- MIPS 75.3 / 100 · 2023
- 22 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2742 Dow Ave
Tustin, CA 927807242
(714) 665-1600
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- August 23, 2011
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Michigan #5101016023
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629284971. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
626
Distinct HCPCS
6
Medicare allowed
$81,672
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 283 | 122 | $127 | |
99239 |
Hospital discharge day management, more than 30 minutes | 154 | 149 | $124 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 96 | 92 | $186 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 47 | 26 | $85 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 27 | 27 | $139 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 19 | 12 | $53 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 312. This provider delivers 2.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
44
Patients
36
Total drug cost
$569
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 18 | 11 | $312 |
| Furosemide | Generic | 14 | 14 | $41 |
| Potassium Chloride | Generic | 12 | 11 | $217 |
Frequently asked questions
What is Dr. Elizabeth Tsai's medical specialty?
Dr. Elizabeth Tsai practices Internal Medicine Physician in Tustin, CA.
Where does Dr. Elizabeth Tsai practice?
Dr. Elizabeth Tsai practices at 2742 Dow Ave, Tustin, CA 927807242. Office phone: 7146651600.
What is Dr. Elizabeth Tsai's NPI?
Dr. Elizabeth Tsai's National Provider Identifier (NPI) is 1629284971, issued by NPPES.
Does Dr. Elizabeth Tsai accept Medicare assignment?
Yes. Dr. Elizabeth Tsai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Elizabeth Tsai commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.