Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John T Ryan, DC

Individual provider Chiropractor · NPI 1306053491

John T Ryan, DC is a Chiropractor in Eureka, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

See every abbreviation used in this directory →

Practice location Address checks out

1628 Broadway
Eureka, CA 95501
Phone: (707) 445-2570
Fax: (707) 445-2577
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence DC28910 (CA)

Record details

NPI number1306053491
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedMay 17, 2007
Last updated in NPPESJuly 8, 2007
Mailing address2817 Myrtle Ave, Eureka, CA 95501-3480

Other providers in Eureka