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RYAN K. ONISHI, O.D., AN OPTOMETRIC CORPORATION
NPI 1548435951
Clinic/Center - Health Service in San Juan Capistrano, CA

Active since April 25, 2008
31401 RANCHO VIEJO RD, SUITE 103, SAN JUAN CAPISTRANO, CA 92675(949) 496-0552 Get Directions Write a Review

NPPES record last updated: April 25, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Ryan K. Onishi, O.d., An Optometric Corporation NPPES

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

RYAN K. ONISHI, O.D., AN OPTOMETRIC CORPORATION (NPI 1548435951) is a healthcare organization registered as a health service in San Juan Capistrano, California and active in the NPI registry since April 2008. The organization lists Ryan K Onishi, President, as its authorized official.

NPPES Registry Identity

NPI1548435951
Entity TypeOrganization
Primary Taxonomy261QH0100X
Legal Business NameRYAN K. ONISHI, O.D., AN OPTOMETRIC CORPORATION
Location Address31401 RANCHO VIEJO RD, SUITE 103San Juan Capistrano, CA 92675-1851
Mailing Address31401 Rancho Viejo Rd, Suite 103San Juan Capistrano, CA 92675-1851 · (949) 496-0552
Phone(949) 496-0552
Organization SubpartNo
Authorized OfficialRyan K OnishiPresident · (949) 496-0552
Enumeration DateApril 25, 2008
✔ NPI 1548435951 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Health ServiceAmbulatory Health Care Facilities
Taxonomy Code261QH0100X
License✔ Licensed in CA · 11380T
31401 RANCHO VIEJO RD, San Juan Capistrano, CA 92675
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Other Providers at the Same Location NPPES 7

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

DR. RYAN K ONISHI O.D.
Optometrist
31401 RANCHO VIEJO RD, SUITE 103
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 496-0552
DR. NINA H DAO
Optometrist
31401 RANCHO VIEJO RD, SUITE 103
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 248-2590
JOSEPH K. KIKUMOTO, O.D., AN OPTOMETRIC CORPORATION
Optometrist
31401 RANCHO VIEJO RD, SUITE 103
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 443-3794
DAO OPTOMETRIC GROUP
Optometrist
31401 RANCHO VIEJO RD, SUITE 103
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 248-2590
JOSEPH K. KIKUMOTO, O.D.
Optometrist
31401 RANCHO VIEJO RD, SUITE 103
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 443-3794
DR. JOSEPH KEITH KIKUMOTO O.D.
Optometrist
31401 RANCHO VIEJO RD, SUITE 103
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 443-3794
DR. STEVE DAO OD
Optometrist
31401 RANCHO VIEJO RD, SUITE 103
SAN JUAN CAPISTRANO, CA 92675
Orange County (949) 248-2590

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 Ryan K. Onishi, O.D., An Optometric Corporation's NPI number?

The NPI number for Ryan K. Onishi, O.D., An Optometric Corporation is 1548435951. It was assigned to this organization in the NPPES registry on April 25, 2008.

Where is Ryan K. Onishi, O.D., An Optometric Corporation located?

Ryan K. Onishi, O.D., An Optometric Corporation is located at 31401 Rancho Viejo Rd Suite 103, San Juan Capistrano, CA 92675. The listed phone number is (949) 496-0552.

What is Ryan K. Onishi, O.D., An Optometric Corporation's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Health Service, with taxonomy code 261QH0100X.

When was this NPI record last updated?

The NPPES record for Ryan K. Onishi, O.D., An Optometric Corporation was last updated on April 25, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.