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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. MICHAEL ASHTON THEOBALD M.D.
NPI 1821047556
Specialist in Edmonds, WA

Active since May 09, 2006
21601 76TH AVE W, EDMONDS, WA 98026(425) 640-4000 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. Michael Ashton Theobald M.d. NPPES

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

DR. MICHAEL ASHTON THEOBALD M.D. (NPI 1821047556) is an individual specialist in Edmonds, Washington, licensed in Washington (MD00011020) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1821047556
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameDR. MICHAEL ASHTON THEOBALDCredential: M.D.
Location Address21601 76TH AVE WEdmonds, WA 98026-7507
Mailing Address12042 6th Ave NwSeattle, WA 98177-4521 · (206) 361-8408
Phone(425) 640-4000
Sole ProprietorNo
Enumeration DateMay 9, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1821047556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in WA · MD00011020
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.
21601 76TH AVE W, Edmonds, WA 98026
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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.

BARBARA R FAYETTE PA C
Physician Assistant
21601 76TH AVE W
EDMONDS, WA 98026
Snohomish County (425) 640-4000
ALEXANDER C CHUNG MD
Hospitalist
21601 76TH AVE W
EDMONDS, WA 98026
Snohomish County (425) 640-4000
PHD#2 OF SNOHOMISH COUNTY
Psychiatric Unit
21601 76TH AVE W
EDMONDS, WA 98026
Snohomish County (425) 640-4000
CARISSA RENEE KONO PT
Physical Therapist
21601 76TH AVE W
EDMONDS, WA 98026
Snohomish County (425) 640-4145
SWEDISH EDMONDS
General Acute Care Hospital
21601 76TH AVE W
EDMONDS, WA 98026
Snohomish County (425) 640-4000
DR. JAMES FREDERICK BARTSCHER M.D.
Psychiatry & Neurology (Neurology)
21601 76TH AVE W
EDMONDS, WA 98026
Snohomish County (206) 215-2520
JENNIFER N KWOK PHARM.D.
Pharmacist
21601 76TH AVE W
EDMONDS, WA 98026
Snohomish County (425) 640-4180
SWEDISH EDMONDS
Psychiatry & Neurology (Psychiatry)
21601 76TH AVE W
EDMONDS, WA 98026
Snohomish County (425) 640-4000

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 Michael Theobald's NPI number?

The NPI number for Michael Theobald is 1821047556. It was assigned to this individual provider in the NPPES registry on May 9, 2006.

Where is Michael Theobald located?

Michael Theobald practices at 21601 76th Ave W, Edmonds, WA 98026. The listed phone number is (425) 640-4000.

What is Michael Theobald'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 Michael Theobald 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 37 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.