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

TIMOTHY HAYES MASSEY M.D.
NPI 1023088374
Orthopaedic Surgery in Kirkland, WA

Active since January 26, 2006
11821 NE 128TH ST, SUITE A, KIRKLAND, WA 98034(425) 823-8282(425) 823-6696 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Timothy Hayes Massey M.d. NPPES

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

TIMOTHY HAYES MASSEY M.D. (NPI 1023088374) is an individual orthopaedic surgery provider in Kirkland, Washington, licensed in Washington (MD00030689) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1023088374
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameTIMOTHY HAYES MASSEYCredential: M.D.
Location Address11821 NE 128TH ST, SUITE AKirkland, WA 98034-7210
Mailing Address11821 Ne 128th St, Suite AKirkland, WA 98034-7210 · (425) 823-8282 · Fax (425) 823-6696
Fax(425) 823-6696
Sole ProprietorNo
Enumeration DateJanuary 26, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPI 1023088374 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License Licensed in WA · MD00030689
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Also ListedOrthopaedic Surgery · Orthopaedic Surgery of the SpineTaxonomy 207XS0117X · License MD00030689 (WA)
11821 NE 128TH ST, Kirkland, WA 98034

Other Identifiers 3

Other48820WA · Dept. Of Labor & Industri
Medicaid8154072/7040033WA
OtherMA6448WA · Regence Blue Shield Numbe

Accepted Insurance

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.

Physical Therapist
11821 NE 128TH ST, STE C
KIRKLAND, WA 98034
Chiropractor
11821 NE 128TH ST, STE B
KIRKLAND, WA 98034
Physical Therapist
11821 NE 128TH ST, STE C
KIRKLAND, WA 98034
Durable Medical Equipment & Medical Supplies
11821 NE 128TH ST, SUITE C
KIRKLAND, WA 98034
Nurse Practitioner (Family)
11821 NE 128TH ST, SUITE H
KIRKLAND, WA 98034
Physical Therapist
11821 NE 128TH ST, STE C
KIRKLAND, WA 98034
Non-Pharmacy Dispensing Site
11821 NE 128TH ST, SUITE H
KIRKLAND, WA 98034
Acupuncturist
11821 NE 128TH ST, SUITE H
KIRKLAND, WA 98034

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 Timothy Massey's NPI number?

The NPI number for Timothy Massey is 1023088374. It was assigned to this individual provider in the NPPES registry on January 26, 2006.

Where is Timothy Massey located?

Timothy Massey practices at 11821 NE 128th St Suite A, Kirkland, WA 98034. The listed phone number is (425) 823-8282.

What is Timothy Massey's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

What insurance does Timothy Massey accept?

Health plans from Providence Health Plan list Timothy Massey as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Timothy Massey was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 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.