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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.

DR. SIDNEY J STROTHER DDS
NPI 1336115559
Dentist - General Practice in Oak Harbor, WA

Active since February 27, 2006
520 E WHIDBEY AVE, STE 210, OAK HARBOR, WA 98277(360) 679-7227(360) 675-7278 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Sidney J Strother Dds NPPES

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

DR. SIDNEY J STROTHER DDS (NPI 1336115559) is an individual general practice provider in Oak Harbor, Washington, licensed in Washington (7121) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1336115559
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. SIDNEY J STROTHERCredential: DDS
Location Address520 E WHIDBEY AVE, STE 210Oak Harbor, WA 98277-5921
Mailing Address520 E Whidbey Ave, Ste 210Oak Harbor, WA 98277-5921 · (360) 679-7227 · Fax (360) 675-7278
Phone(360) 679-7227
Fax(360) 675-7278
Sole ProprietorNo
Enumeration DateFebruary 27, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1336115559 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in WA · 7121
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
520 E WHIDBEY AVE, Oak Harbor, WA 98277
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Other Providers at the Same Location NPPES 8

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

MR. PHILLIP RENNINGER MPT
Physical Therapist (Orthopedic)
520 E WHIDBEY AVE, SUITE 102
OAK HARBOR, WA 98277
Island County (360) 675-9030
MRS. NELLIE WILSON LMT, LMP
Massage Therapist
520 E WHIDBEY AVE, SUITE 101
OAK HARBOR, WA 98277
Island County (503) 936-2061
DR. DAVID LEON CELIO PHD
Psychologist (Clinical)
520 E WHIDBEY AVE, OFFICE # 206
OAK HARBOR, WA 98277
Island County (360) 675-4027
NORTH ISLAND CHIROPRACTIC & WELLNESS CENTER
Chiropractor
520 E WHIDBEY AVE, SUITE 101
OAK HARBOR, WA 98277
Island County (360) 682-2759
SIDNEY J. STROTHER DDS, P.C.
Dentist
520 E WHIDBEY AVE, #210
OAK HARBOR, WA 98277
Island County (360) 679-7227
MRS. MOLLY PATRICIA GAMBLE LMP
Massage Therapist
520 E WHIDBEY AVE, SUITE 103
OAK HARBOR, WA 98277
Island County (206) 387-9419
DR. RONDLE BENNETT D.C.
Chiropractor
520 E WHIDBEY AVE, SUITE 101
OAK HARBOR, WA 98277
Island County (360) 682-2759
COMPASS MANUAL THERAPY, LLC
Physical Therapist
520 E WHIDBEY AVE, STE 102
OAK HARBOR, WA 98277
Island County (360) 675-9030

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 Sidney Strother's NPI number?

The NPI number for Sidney Strother is 1336115559. It was assigned to this individual provider in the NPPES registry on February 27, 2006.

Where is Sidney Strother located?

Sidney Strother practices at 520 E Whidbey Ave Ste 210, Oak Harbor, WA 98277. The listed phone number is (360) 679-7227.

What is Sidney Strother's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for Sidney Strother 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 40 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.