MARY O'BRIEN PHD
NPI 1811812944
Psychologist - Counseling in Issaquah, WA
About Mary O'brien Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY O'BRIEN PHD (NPI 1811812944) is an individual counseling provider in Issaquah, Washington and active in the NPI registry since August 2026.
NPPES Registry Identity
Specialties & Licenses
Other Providers at the Same Location NPPES 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ISSAQUAH, WA 98027
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 Mary O'brien's NPI number?
The NPI number for Mary O'brien is 1811812944. It was assigned to this individual provider in the NPPES registry on August 10, 2026.
Where is Mary O'brien located?
Mary O'brien practices at 22525 SE 64th Pl, Issaquah, WA 98027. The listed phone number is (425) 269-3277.
What is Mary O'brien's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Counseling, with taxonomy code 103TC1900X.
When was this NPI record last updated?
The NPPES record for Mary O'brien was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days 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.