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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. DANIEL RYAN O.D.
NPI 1962491001
Optometrist in Eureka, CA

Active since October 20, 2005
2437 BUHNE ST, EUREKA, CA 95501(707) 443-4581(707) 269-7137 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Daniel Ryan O.d. NPPES

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

DR. DANIEL RYAN O.D. (NPI 1962491001) is an individual optometrist in Eureka, California, licensed in California (6545T) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1962491001
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. DANIEL RYANCredential: O.D.
Location Address2437 BUHNE STEureka, CA 95501-3206
Mailing Address2437 Buhne StEureka, CA 95501-3206 · (707) 443-4581 · Fax (707) 269-7137
Phone(707) 443-4581
Fax(707) 269-7137
Sole ProprietorNo
Enumeration DateOctober 20, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1962491001 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in CA · 6545T
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
2437 BUHNE ST, Eureka, CA 95501
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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DOUGLAS HOWARD LANNING O.D.
Optometrist
2437 BUHNE ST
EUREKA, CA 95501
Humboldt County (707) 443-4581
DOUGLAS H. LANNING, O.D.
Optometrist
2437 BUHNE ST
EUREKA, CA 95501
Humboldt County (707) 443-4581

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 Daniel Ryan's NPI number?

The NPI number for Daniel Ryan is 1962491001. It was assigned to this individual provider in the NPPES registry on October 20, 2005.

Where is Daniel Ryan located?

Daniel Ryan practices at 2437 Buhne St, Eureka, CA 95501. The listed phone number is (707) 443-4581.

What is Daniel Ryan's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

When was this NPI record last updated?

The NPPES record for Daniel Ryan 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 25 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.