Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
David E Ryan, D.C.
Chiropractor in Seattle, WA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720108723
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Registry record
Entity type Individual (Type 1)
Name David E Ryan
Credential D.C.
Sex Male
Practice address 9015 Holman Rd Nw, Suite 2, Seattle, WA, 98117
Phone (206) 783-6655
Enumeration date Mar 31, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
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.
Frequently asked questions
Where does David Ryan practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for David Ryan?
The National Provider Identifier (NPI) for David Ryan is 1720108723, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Stephen Clausen Chiropractor · Seattle, WA NPI 1629078894 Eric Wechselberger Chiropractor · Seattle, WA NPI 1720162928 Karen Mitchell-Paradis Massage Therapist · Seattle, WA NPI 1386863686 Ballard Chiropractic Clinic, Ps Chiropractor · Seattle, WA NPI 1114129244 John S Miller, Dc, Dacbr, Ps Radiology Chiropractor · Seattle, WA NPI 1669735304 Patrick Baker Massage Therapist · Seattle, WA NPI 1518361765
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.