Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Brendan Joyce Chong O'Malley, MD

Individual provider Anesthesiology Physician · NPI 1033550819

Dr. Brendan Joyce Chong O'Malley, MD practises Anesthesiology in Seattle, Washington. Qualified in 2013, 13 years ago. Practices with Virginia Mason Medical Center, a 867-clinician group and accepts Medicare assignment. Licensed in Kansas and Washington.

Years since qualifying
13
Licensed in
KS, WA
In the registry since
2013
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1100 9th Ave
Seattle, WA 98101-2756
Phone: (206) 223-6980
Fax: (206) 223-6982
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD60637087 (WA)
Anesthesiology Physician Taxonomy 207L00000X · Licence KS440687 (KS)

Record details

NPI number1033550819
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 9, 2013
Last updated in NPPESAugust 27, 2024
Certification dateAugust 27, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Virginia Mason Medical Center — 867 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients245
Services billed 257 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Virginia Mason Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 867 clinicians in the practice; 12 are shown here.

Other providers in Seattle