Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Craig S. Birkby, M.D.

Ambulatory Surgical Clinic/Center in Seattle, WA · enumerated 2007 · authorized official Craig Birkby, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1134329956

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Registry record

Entity type Organization (Type 2)

Legal business name Craig S. Birkby, M.D.

Other name <Unavail>

Practice address 1229 Madison St, Suite 1090, Seattle, WA, 98104

Phone (206) 215-3300

Fax (206) 215-3301

Enumeration date Jul 19, 2007

Last updated in NPPES Nov 10, 2011

Taxonomy & classification

261QA1903X Ambulatory Surgical Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Craig Birkby

Title Owner

Phone (206) 215-3300

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Craig S. Birkby, M.D. located?

The practice location on file with NPPES is in Seattle, WA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-11-10. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-10.