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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.

WILLIAM C MERRICK JR. LMP
NPI 1538456488
Massage Therapist in Redmond, WA

Active since June 29, 2011
22500 NE MARKETPLACE DR, SUITE 204, REDMOND, WA 98053(425) 836-1034(425) 361-1037 Get Directions Write a Review

NPPES record last updated: September 17, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About William C Merrick Jr. Lmp NPPES

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

WILLIAM C MERRICK JR. LMP (NPI 1538456488) is an individual massage therapist in Redmond, Washington, licensed in Washington (MA60110223) and active in the NPI registry since June 2011.

NPPES Registry Identity

NPI1538456488
Entity TypeIndividualMale
Primary Taxonomy225700000X
Provider Legal NameWILLIAM C MERRICK JR.Credential: LMP
Location Address22500 NE MARKETPLACE DR, SUITE 204Redmond, WA 98053-2033
Mailing Address1519 132nd St Se, Suite AEverett, WA 98208-7203 · (425) 357-9380 · Fax (425) 357-9382
Phone(425) 836-1034
Fax(425) 361-1037
Sole ProprietorNo
Enumeration DateJune 29, 2011
Last NPPES UpdateSeptember 17, 2026
NPPES CertifiedSeptember 17, 2026
✔ NPI 1538456488 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyMassage TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225700000X
License✔ Licensed in WA · MA60110223
Definition
An individual trained in the manipulation of tissues (as by rubbing, stroking, kneading, or tapping) with the hand or an instrument for remedial or hygienic purposes.
Also ListedHealth and Wellness CoachTaxonomy 171400000X · License A-3887655 (WA)
22500 NE MARKETPLACE DR, Redmond, WA 98053
Open in Google Maps ↗

Other Identifiers 1

Other0280893WA · L & I

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans.Insurance ›

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KAYLEE NELSON PT, DPT
Physical Therapist
22500 NE MARKETPLACE DR, SUITE 204
REDMOND, WA 98053
King County (425) 836-1034
ERIC POON OT
Occupational Therapist
22500 NE MARKETPLACE DR, SUITE 204
REDMOND, WA 98053
King County (425) 836-1034
JULIE A DECUIRE
Physical Therapist
22500 NE MARKETPLACE DR, SUITE 204
REDMOND, WA 98053
King County (425) 836-1034
INTEGRATED REHABILITATION GROUP INC
Clinic/Center (Physical Therapy)
22500 NE MARKETPLACE DR, SUITE 204
REDMOND, WA 98053
King County (425) 836-1034
BROCK JAMES GIANNARIS PT
Physical Therapist
22500 NE MARKETPLACE DR, SUITE 204
REDMOND, WA 98053
King County (425) 836-1034
REDMOND RIDGE PHYSICAL THERAPY PLLC
Physical Therapist
22500 NE MARKETPLACE DR, SUITE 204
REDMOND, WA 98053
King County (425) 836-1034
LARA M DOW
Physical Therapist
22500 NE MARKETPLACE DR, SUITE 204
REDMOND, WA 98053
King County (425) 836-1034
JOSEPH G BANACH PT
Physical Therapist
22500 NE MARKETPLACE DR, SUITE 204
REDMOND, WA 98053
King County (425) 836-1034

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 William Merrick's NPI number?

The NPI number for William Merrick is 1538456488. It was assigned to this individual provider in the NPPES registry on June 29, 2011.

Where is William Merrick located?

William Merrick practices at 22500 NE Marketplace Dr Suite 204, Redmond, WA 98053. The listed phone number is (425) 836-1034.

What is William Merrick's specialty?

The primary specialty registered for this NPI is Massage Therapist with taxonomy code 225700000X.

What insurance does William Merrick accept?

Health plans from PacificSource Health Plans list William Merrick 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 William Merrick was last updated on September 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.