Doctor profile · Federal record

Dr. Chao-Wei Tsai, MD

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Hospitalist Physician · Olympia, WA

  • NPI 1447607171
  • Accepts Medicare
  • 10 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
413 Lilly RD Ne
Olympia, WA 985065133
(360) 493-4083
Mailing address
Po Box 3360
Portland, OR 972083360

Credentials & registration

NPPES · NUCC
NPI registered
May 2016 — 10 yrs on file
Profile last updated
May 4, 2022
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Washington #MD61158561 · New York #298699

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1447607171. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
912
Distinct HCPCS
4
Medicare allowed
$95,343
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 386 133 $79
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 358 178 $119
99239 Hospital discharge day management, more than 30 minutes 117 117 $115
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 51 50 $172

In context: peer comparison

Among 23 peers in Olympia Internal Medicine Physician, average services per provider: 165. This provider delivers 5.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
110
Patients
66
Total drug cost
$1,227
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 25 23 $318
Pantoprazole Sodium Generic 17 15 $241
Oxycodone Hcl Generic 16 16 $84
Levothyroxine Sodium Generic 14 0 $236
Prednisone Generic 14 12 $86
Amlodipine Besylate Generic 13 0 $50
Metoprolol Succinate Generic 11 0 $212

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Chao-Wei Tsai's medical specialty?
Dr. Chao-Wei Tsai practices Internal Medicine Physician in Olympia, WA.
Where does Dr. Chao-Wei Tsai practice?
Dr. Chao-Wei Tsai practices at 413 Lilly RD Ne, Olympia, WA 985065133. Office phone: 3604934083.
What is Dr. Chao-Wei Tsai's NPI?
Dr. Chao-Wei Tsai's National Provider Identifier (NPI) is 1447607171, issued by NPPES.
Does Dr. Chao-Wei Tsai accept Medicare assignment?
Yes. Dr. Chao-Wei Tsai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chao-Wei Tsai commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.