Doctor profile · Federal record
Dr. Stephen Yau, M.D.
Pulmonary Disease Physician (CMS: Pulmonary Disease) · Internal Medicine Physician · Critical Care Medicine (Internal Medicine) Physician · Pulmonary Disease Physician · Portland, OR
- NPI 1154616035
- Accepts Medicare
- 15 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 4 locations .
- Primary practice
-
9427 Sw Barnes RD Ste 296
Portland, OR 972256652
(503) 297-3778
fax (503) 297-7853 - Additional location
-
19250 Sw 65Th Ave Ste 420
Tualatin, OR 970627452
(503) 692-8560
fax (503) 692-8562 - Additional location
-
879 Providence Dr
Newberg, OR 971327563 - Additional location
-
200 Ne Mother Joseph Pl Ste 330
Vancouver, WA 986643288
(360) 514-3505
fax (360) 514-3508 - Mailing address
-
541 Ne 20Th Ave Ste 225
Portland, OR 972322895
Show 1 more location
Credentials & registration
- NPI registered
- June 2011 — 15 yrs on file
- Profile last updated
- August 20, 2024
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207RP1001X — NUCC code
- State licenses (3)
- Oregon #MD182749 · Illinois #125:060286 · Washington #MD61578579
- Medicaid (2)
- OR #500729440 · WA #2083737
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1154616035. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
618
Distinct HCPCS
10
Medicare allowed
$62,487
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 127 | 70 | $212 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 89 | 81 | $129 | |
95810 |
Sleep study in sleep lab (6 years or older) | 68 | 68 | $116 | |
95800 |
Sleep study including heart rate, breathing, and sleep time | 63 | 63 | $40 | |
95811 |
Sleep study in sleep lab with continuous airway pressure (6 years or older) | 52 | 51 | $121 | |
94060 |
Test to measure expiratory airflow and volume changes before and after medication administration | 33 | 33 | $10 | |
94729 |
Test to examine how well the lungs exchange gases | 32 | 32 | $9 | |
94726 |
Test to determine lung volumes using sensors | 31 | 31 | $12 | |
G0399 |
Home sleep test (hst) with type iii portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ecg/heart rate and 1 oxygen saturation | 30 | 15 | $48 | |
94729 |
Test to examine how well the lungs exchange gases | 22 | 22 | $58 |
In context: peer comparison
Among 32 peers in Portland Pulmonary Disease Physician, average services per provider: 36. This provider delivers 17× the peer median.Open Payments
Industry payments received
All-time total
$412,917
Transactions
350
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Genzyme Corporation | 93 | $125,136.38 | |
| GlaxoSmithKline, LLC. | 115 | $117,210.49 | |
| AstraZeneca Pharmaceuticals Lp | 87 | $85,884.01 | |
| Regeneron Healthcare Solutions, INC. | 50 | $77,442.95 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 4 | $7,149.74 | |
| Zoll Services LLC (A/K/A Zoll LifeCor Corp) | 1 | $93.48 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
599
Patients
63
Total drug cost
$818,656
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 136 | 21 | $114,022 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 62 | 16 | $2,111 |
| Montelukast Sodium | Generic | 52 | 12 | $720 |
| Fluticasone-Salmeterol (Fluticasone Propion/Salmeterol) | Brand | 46 | 0 | $7,744 |
| Spiriva Handihaler (Tiotropium Bromide) | Brand | 42 | 0 | $23,012 |
| Dupixent Pen (Dupilumab) | Brand | 38 | 0 | $135,078 |
| Breztri Aerosphere (Budesonide/Glycopyr/Formoterol) | Brand | 36 | 0 | $23,513 |
| Ofev (Nintedanib Esylate) | Brand | 33 | 0 | $445,600 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 29 | 0 | $19,979 |
| Advair Diskus (Fluticasone Propion/Salmeterol) | Brand | 25 | 0 | $13,086 |
Frequently asked questions
What is Dr. Stephen Yau's medical specialty?
Dr. Stephen Yau practices Pulmonary Disease Physician in Portland, OR.
Where does Dr. Stephen Yau practice?
Dr. Stephen Yau practices at 9427 Sw Barnes RD Ste 296, Portland, OR 972256652. Office phone: 5032973778.
What is Dr. Stephen Yau's NPI?
Dr. Stephen Yau's National Provider Identifier (NPI) is 1154616035, issued by NPPES.
Does Dr. Stephen Yau accept Medicare assignment?
Yes. Dr. Stephen Yau accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Yau commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Established patient office or other outpatient visit (HCPCS 99214); Sleep study in sleep lab (6 years or older) (HCPCS 95810). Source: CMS Medicare Physician & Other Practitioners file.