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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. WILLIAM J MITCHELL MD
NPI 1114908852
Specialist in Olympia, WA

Active since November 09, 2005
500 LILLY RD NE, SUITE 204, OLYMPIA, WA 98506(360) 413-8250(360) 413-8830 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, Mar 7, 2023 (2 updates tracked since 2023).

About Dr. William J Mitchell Md NPPES

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

DR. WILLIAM J MITCHELL MD (NPI 1114908852) is an individual specialist in Olympia, Washington, licensed in Washington (A08530) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1114908852
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameDR. WILLIAM J MITCHELLCredential: MD
Location Address500 LILLY RD NE, SUITE 204Olympia, WA 98506-5195
Mailing Address500 Lilly Rd Ne, Suite 204Olympia, WA 98506-5195 · (360) 413-8250 · Fax (360) 413-8830
Phone(360) 413-8250
Fax(360) 413-8830
Sole ProprietorNo
Enumeration DateNovember 9, 2005
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1114908852 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in WA · A08530
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
500 LILLY RD NE, Olympia, WA 98506
Open in Google Maps ↗

Other Identifiers 1

OtherMD00022796WA · Md License

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. ROBERT C TOMFORD MD
Internal Medicine (Nephrology)
500 LILLY RD NE, SUITE 203
OLYMPIA, WA 98506
Thurston County (360) 413-8121
SAMANTHA MOORE PA-C
Physician Assistant
500 LILLY RD NE
OLYMPIA, WA 98506
Thurston County (360) 413-8250
DR. AUDREY MANTANONA PHARMD
Pharmacist
500 LILLY RD NE
OLYMPIA, WA 98506
Thurston County (360) 477-5101
MR. ELIJAH TELFARE P.A.
Physician Assistant (Surgical)
500 LILLY RD NE, SUITE 100
OLYMPIA, WA 98506
Thurston County (360) 491-4211
NORTHWEST RADIOLOGY GROUP LLC
Specialist
500 LILLY RD NE, SUITE 160
OLYMPIA, WA 98506
Thurston County (360) 413-8307
MR. PATRICK C WILLIAMS PA
Physician Assistant
500 LILLY RD NE, SUITE 204
OLYMPIA, WA 98506
Thurston County (360) 413-8250
SEATTLE VAMC
Clinic/Center (VA)
500 LILLY RD NE, STE 201 AND 204A
OLYMPIA, WA 98506
Thurston County (702) 341-3164
DR. WILLIAM A GAVIN MD
Internal Medicine (Cardiovascular Disease)
500 LILLY RD NE, STE 100
OLYMPIA, WA 98506
Thurston County (360) 413-8525

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 Mitchell's NPI number?

The NPI number for William Mitchell is 1114908852. It was assigned to this individual provider in the NPPES registry on November 9, 2005.

Where is William Mitchell located?

William Mitchell practices at 500 Lilly Rd NE Suite 204, Olympia, WA 98506. The listed phone number is (360) 413-8250.

What is William Mitchell's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

When was this NPI record last updated?

The NPPES record for William Mitchell 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 30 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.