IndividualActive
John Ryan, D.C.
NPI 1306053491 · Chiropractor · Eureka, CA
John Ryan, D.C. is a Chiropractor provider in Eureka, CA (NPI 1306053491).
Provider details
- NPI number
- 1306053491
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- Sole proprietor
- No
- License
- DC28910 (CA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
1628 Broadway
Eureka, CA 95501
Phone: (707) 445-2570
Fax: (707) 445-2577
Street-level locationGet directions
Mailing address
2817 Myrtle Ave
Eureka, CA 95501-3480
Registry dates
- Enumerated
- 2007-05-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Ryan's NPI number?
- John Ryan's National Provider Identifier (NPI) is 1306053491, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Ryan's specialty?
- John Ryan is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is John Ryan located?
- John Ryan's practice location on file with NPPES is 1628 Broadway, Eureka, CA 95501.
- What is John Ryan's phone number?
- The practice phone number listed in the NPPES registry for John Ryan is (707) 445-2570.
- Is John Ryan's NPI active?
- Yes — John Ryan's NPI (1306053491) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.