Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Adam Claessens, DO

Individual provider Anesthesiology Physician · NPI 1689061087

Adam Claessens, DO practises Anesthesiology in Seattle, Washington. Qualified in 2015, 11 years ago. Practices with The Association of University Physicians, a 3,459-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
11
Licensed in
WA
In the registry since
2015
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1959 NE Pacific St
Seattle, WA 98195-2720
Phone: (206) 520-5000
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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 OP60926509 (WA)

Record details

NPI number1689061087
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 23, 2015
Last updated in NPPESJuly 17, 2019

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice The Association Of University Physicians — 3459 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 patients75
Services billed 92 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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 The Association of University Physicians

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3459 clinicians in the practice; 12 are shown here.

Other providers in Seattle