Doctor profile · Federal record
Dr. Tom Chau, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Portland, OR
- NPI 1629259916
- Accepts Medicare
- 21 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9205 Sw Barnes RD, Suite Mt 2800
Portland, OR 972256603
(503) 216-2621 - Mailing address
-
Po Box 3158
Portland, OR 972083158
Credentials & registration
- NPI registered
- November 2007 — 19 yrs on file
- Profile last updated
- February 19, 2021
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Oregon #MD29380
- Medicaid
- OR #500608945
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629259916. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
354
Distinct HCPCS
8
Medicare allowed
$33,733
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 169 | 124 | $92 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 62 | 19 | $119 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 29 | 11 | $79 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 26 | 24 | $67 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 22 | 22 | $41 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 18 | 16 | $112 | |
99239 |
Hospital discharge day management, more than 30 minutes | 17 | 17 | $115 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $174 |
In context: peer comparison
Among 209 peers in Portland Internal Medicine Physician, average services per provider: 60. This provider delivers 5.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
808
Patients
217
Total drug cost
$15,513
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Rosuvastatin Calcium | Generic | 104 | 34 | $1,349 |
| Indapamide | Generic | 96 | 29 | $1,871 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 80 | 25 | $1,009 |
| Atorvastatin Calcium | Generic | 73 | 25 | $1,212 |
| Levothyroxine Sodium | Generic | 72 | 23 | $1,396 |
| Gabapentin | Generic | 47 | 15 | $972 |
| Irbesartan | Generic | 46 | 16 | $1,284 |
| Alfuzosin Hcl ER (Alfuzosin Hcl) | Brand | 45 | 15 | $1,153 |
| Amlodipine-Olmesartan (Amlodipine Bes/Olmesartan MED) | Brand | 45 | 13 | $1,976 |
| Tamsulosin Hcl | Generic | 43 | 11 | $834 |
Hospital affiliations
Frequently asked questions
What is Dr. Tom Chau's medical specialty?
Dr. Tom Chau practices Internal Medicine Physician in Portland, OR.
Where does Dr. Tom Chau practice?
Dr. Tom Chau practices at 9205 Sw Barnes RD, Portland, OR 972256603. Office phone: 5032162621.
What is Dr. Tom Chau's NPI?
Dr. Tom Chau's National Provider Identifier (NPI) is 1629259916, issued by NPPES.
Does Dr. Tom Chau accept Medicare assignment?
Yes. Dr. Tom Chau accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tom Chau commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.