DR. TOM CHAU M.D.
NPI 1629259916
Internal Medicine in Portland, OR

Active since November 15, 2007PECOS EnrolledAccepts Medicare Assignment
9205 SW BARNES RD, SUITE MT 2800, PORTLAND, OR 97225(503) 216-2621 Get Directions Write a Review

NPPES record last updated: February 19, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Tom Chau M.d. NPPES

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

DR. TOM CHAU M.D. (NPI 1629259916) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (MD29380) and active in the NPI registry since November 2007. He is enrolled in Medicare PECOS, is affiliated with Providence St Vincent Medical Center, and is a graduate of University Of Colorado School Of Medicine, Denver (2005).

NPPES Registry Identity

NPI1629259916
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. TOM CHAUCredential: M.D.
Location Address9205 SW BARNES RD, SUITE MT 2800Portland, OR 97225-6603
Mailing AddressPo Box 3158Portland, OR 97208-3158
Sole ProprietorNo
Medical School CMSUniversity Of Colorado School Of Medicine, DenverGraduated 2005
Enumeration DateNovember 15, 2007
Last NPPES UpdateFebruary 19, 2021
NPPES CertifiedFebruary 19, 2021
NPI 1629259916 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in OR · MD29380
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
9205 SW BARNES RD, Portland, OR 97225

Other Identifiers 2

Medicaid500608945OR
OtherP00795108OR · Rr Medicare

Accepted 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

Dr. Tom Chau 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 ID1850477019
PECOS Enrollment IDI20090909000673
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 9

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.

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.
124 services93 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
73 services27 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
28 services28 patients
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.
27 services12 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
22 services22 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
15 services14 patients

Hospital Affiliations CMS Care Compare

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

Providence St Vincent Medical Center

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380004
Location9205 SW Barnes RoadPortland, OR 97225 · Washington 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

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

Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier12 claims12 services$8.50 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Hospitalist
9205 SW BARNES RD
PORTLAND, OR 97225
Pharmacist
9205 SW BARNES RD
PORTLAND, OR 97225
Nurse Anesthetist, Certified Registered
9205 SW BARNES RD
PORTLAND, OR 97225
Physical Therapist
9205 SW BARNES RD
PORTLAND, OR 97225
Counselor (Mental Health)
9205 SW BARNES RD
PORTLAND, OR 97225
Hospitalist
9205 SW BARNES RD
PORTLAND, OR 97225
Radiology (Vascular & Interventional Radiology)
9205 SW BARNES RD
PORTLAND, OR 97225
Pathology (Anatomic Pathology & Clinical Pathology)
9205 SW BARNES RD
PORTLAND, OR 97225

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Tom Chau's NPI number?

The NPI number for Tom Chau is 1629259916. It was assigned to this individual provider in the NPPES registry on November 15, 2007.

Where is Tom Chau located?

Tom Chau practices at 9205 SW Barnes Rd Suite Mt 2800, Portland, OR 97225. The listed phone number is (503) 216-2621.

What is Tom Chau's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Tom Chau enrolled in Medicare?

Yes. Tom Chau is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Tom Chau accept?

Health plans from Providence Health Plan list Tom Chau as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Tom Chau affiliated with any hospitals?

According to CMS data, Tom Chau is affiliated with Providence St Vincent Medical Center.

When was this NPI record last updated?

The NPPES record for Tom Chau was last updated on February 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.