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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CLARA ELOISE O'BRIEN PHD
NPI 1124565189
Psychologist - Rehabilitation in Seattle, WA

Active since January 27, 2017PECOS Enrolled
1550 N 115TH ST, SEATTLE, WA 98133(206) 364-0500 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 3, 2026, Jul 15, 2022, Jan 27, 2017 (3 updates tracked since 2017).

About Clara Eloise O'brien Phd NPPES

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

CLARA ELOISE O'BRIEN PHD (NPI 1124565189) is an individual rehabilitation provider in Seattle, Washington, licensed in Washington (PSYC.PY.70046950) and active in the NPI registry since January 2017. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1124565189
Entity TypeIndividualFemale
Primary Taxonomy103TR0400X
Provider Legal NameCLARA ELOISE O'BRIENCredential: PHD
Location Address1550 N 115TH STSeattle, WA 98133-8401
Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 520-5700
Phone(206) 364-0500
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJanuary 27, 2017
Last NPPES UpdateSeptember 3, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2026
✔ NPI 1124565189 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · RehabilitationBehavioral Health & Social Service Providers
Taxonomy Code103TR0400X
License✔ Licensed in WA · PSYC.PY.70046950
Definition
A psychologist who specializes in the study and application of psychological principles on behalf of persons who have disability due to injury or illness. Rehabilitation psychologists, often within teams, assess and treat cognitive, emotional, and functional difficulties, and help people to overcome barriers to participation in life activities. Rehabilitation psychologists are involved in practice, research, and advocacy, with the broad goal of fostering independence and opportunity for people with disabilities.
1550 N 115TH ST, Seattle, WA 98133
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1609 Northshore DrBellingham, WA 98226-4414 · Phone (360) 676-6000
Location 2122 16th Ave ESeattle, WA 98112-5212 · Phone (206) 901-2000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Clara Eloise O'brien Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4880152289
PECOS Enrollment IDI20260817000710
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.

Medicare Billing Reassignment

Medicare enrollment records show Clara O'brien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Association Of University Physicians
7.6 mi
Anesthesiology
701 5TH AVE, SUITE 700
Seattle, WA 98104
  • Reassigned Medicare billing, Washington enrollment
  • 4,364 clinicians in this Medicare group
NPI 1023041159 (206) 543-6420

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

DR. MARIA ANN CORCORRAN MD
Internal Medicine
1550 N 115TH ST
SEATTLE, WA 98133
King County (206) 520-5000
BRENDA PARK DO
Emergency Medicine
1550 N 115TH ST
SEATTLE, WA 98133
King County (206) 368-5762
ELEANOR GANZ MD
Emergency Medicine
1550 N 115TH ST
SEATTLE, WA 98133
King County (206) 598-4955
HALLIE LOEWEN RN
Registered Nurse
1550 N 115TH ST
SEATTLE, WA 98133
King County (360) 320-7179
DR. JOHN EDWARD ABELLERA BLAIR MD
Internal Medicine (Interventional Cardiology)
1550 N 115TH ST
SEATTLE, WA 98133
King County (206) 520-5000
LEE F. BARNES MD
Anesthesiology
1550 N 115TH ST
SEATTLE, WA 98133
King County (206) 364-0500
DR. GARY H. SOMERS M.D.
Emergency Medicine
1550 N 115TH ST
SEATTLE, WA 98133
King County (206) 368-1765
MRS. MELISSA ANNE DARRAGH MSN, FNP-C
Nurse Practitioner (Family)
1550 N 115TH ST
SEATTLE, WA 98133
King County (206) 668-1244

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 Clara O'brien's NPI number?

The NPI number for Clara O'brien is 1124565189. It was assigned to this individual provider in the NPPES registry on January 27, 2017.

Where is Clara O'brien located?

Clara O'brien practices at 1550 N 115th St, Seattle, WA 98133. The listed phone number is (206) 364-0500.

What is Clara O'brien's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Rehabilitation, with taxonomy code 103TR0400X.

Is Clara O'brien enrolled in Medicare?

Yes. Clara O'brien is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Clara O'brien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clara O'brien reassigns Medicare benefits to The Association Of University Physicians (Seattle, WA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Clara O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Clara O'brien was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 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.