Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Corey Robert O'Brien, MD

Individual provider Internal Medicine Physician · NPI 1871940312

Corey Robert O'Brien, MD is a Hospitalist in Kirkland, Washington. Graduated from Georgetown University School of Medicine in 2016, 10 years ago. Practices with King County Public Hospital District No 2, a 585-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
10
Trained at
Georgetown University School of Medicine
Licensed in
WA
In the registry since
2016
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

12040 NE 128th St
Kirkland, WA 98034-3013
Phone: (425) 899-1854
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD61134393 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD61134393 (WA)

Record details

NPI number1871940312
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 14, 2016
Last updated in NPPESMarch 21, 2023
Certification dateMarch 21, 2023
Mailing address12040 Ne 128th St, Kirkland, WA 98034-3013

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice King County Public Hospital District No 2 — 585 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Kirkland