STEPHEN TENG-YIP YAU M.D.
NPI 1154616035
Internal Medicine - Pulmonary Disease in Portland, OR

Q: What is Stephen Yau's NPI number?

The NPI number for Stephen Yau is 1154616035. It was assigned to this individual provider in the NPPES registry on June 18, 2011.

Q: What is Stephen Yau's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Yau was last updated on August 20, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since June 18, 2011PECOS EnrolledAccepts Medicare Assignment

9427 SW BARNES RD STE 296, PORTLAND, OR 97225(503) 297-3778(503) 297-7853 Get Directions Write a Review

NPPES record last updated: August 20, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Aug 20, 2024, Dec 5, 2023, Feb 7, 2019 and 1 more (4 updates tracked since 2018).

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About Stephen Teng-yip Yau M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEPHEN TENG-YIP YAU M.D. (NPI 1154616035) is an individual pulmonary disease provider in Portland, Oregon, licensed in Oregon (MD182749) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Peacehealth Southwest Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1154616035

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameSTEPHEN TENG-YIP YAUCredential: M.D.

Location Address9427 SW BARNES RD STE 296Portland, OR 97225-6652

Mailing Address541 Ne 20th Ave Ste 225Portland, OR 97232-2895 · (503) 963-2801 · Fax (503) 963-2825

Phone(503) 297-3778

Fax(503) 297-7853

Sole ProprietorNo

Medical School CMSOtherGraduated 2011

Enumeration DateJune 18, 2011

Last NPPES UpdateAugust 20, 20244 updates tracked since enumeration

NPPES CertifiedAugust 20, 2024

✔ NPI 1154616035 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

Licenses✔ Licensed in OR · MD182749✔ Licensed in WA · MD61578579

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal MedicineTaxonomy 207R00000X · License 125:060286 (IL)

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License MD61578579 (WA)

9427 SW BARNES RD STE 296, Portland, OR 97225

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Secondary Practice Locations 3

Location 119250 SW 65th Ave Ste 420Tualatin, OR 97062-7452 · Phone (503) 692-8560 · Fax (503) 692-8562

Location 2200 NE Mother Joseph Pl Ste 330Vancouver, WA 98664-3288 · Phone (360) 514-3505 · Fax (360) 514-3508

Location 3879 Providence DrNewberg, OR 97132-7563 · Phone (503) 297-3778 · Fax (503) 297-7853

Other Identifiers 2

Medicaid500729440OR

Medicaid2083737WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Kaiser Permanente, Moda Health Plan, Inc., PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stephen Teng-yip Yau M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6800193012

PECOS Enrollment IDI20240904002069

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 16

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

53 services17 patients

Sleep study in sleep lab (6 years or older) 95810

A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.

49 services49 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

48 services46 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

47 services36 patients

Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811

A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.

44 services43 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

27 services27 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

27 services27 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

27 services27 patients

Home sleep test (hst) with type iv portable monitor, unattended; minimum of 3 channels G0400

A Home Sleep Test (HST) with a Type IV Portable Monitor is a non-invasive test done at home. It records your sleep patterns, breathing, oxygen levels, and heart rate to help diagnose sleep disorders like sleep apnea. It's unattended and uses minimum of 3 channels for data collection.

24 services24 patients

Sleep study including heart rate, breathing, and sleep time 95800

A sleep study monitors your sleep patterns to evaluate your sleep quality. It records your heart rate, breathing, and actual sleep time. This information helps identify any sleep disorders, ensuring you get the rest you need for optimal health.

19 services19 patients

Home sleep test (hst) with type iv portable monitor, unattended; minimum of 3 channels G0400

19 services19 patients

Test to examine how well the lungs exchange gases 94729

18 services18 patients

Sleep study including heart rate, breathing, and sleep time 95800

17 services16 patients

Test to determine lung volumes using sensors 94726

16 services16 patients

Blood count, hemoglobin 85018

A blood count, specifically hemoglobin, is a standard test that measures the amount of hemoglobin in your blood. Hemoglobin is a protein in red blood cells that carries oxygen throughout your body. This test helps assess your overall health and detect a variety of disorders such as anemia or polycythemia.

15 services15 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

15 services15 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Peacehealth Southwest Medical Center

Acute Care Hospitals · Vancouver, WA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500050

Location400 NE Mother Joseph PlaceVancouver, WA 98668 · Clark County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97225 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$134.16 typical visit price

range $58.99 – $176.88

Typical copayment $33.54 (range $14.74 – $44.22)

Most-billed visit code 99204

Established Patient

$103.51 typical visit price

range $19.32 – $144.79

Typical copayment $25.87 (range $4.83 – $36.19)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 18

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604