Daniel Ryan, O.D.
Optometrist · Eureka, CA
Daniel Ryan, O.D. is an optometrist with a practice address in Eureka, California, and NPI 1962491001, issued on Oct 20, 2005. Check the license (California 6545T, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Daniel Ryan
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 6545T CA
Self-reported in NPPES; status is on the state search - Practice location
- 2437 Buhne St, Eureka, CA 95501
- Phone
- (707) 443-4581
- Enumerated
- Oct 20, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (707) 269-7137
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 2437 Buhne St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Douglas Lanning, O.D.Optometrist1750449211
Verify Daniel Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 6545TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Daniel Ryan among 8,308 optometrist records in California
Daniel Ryan, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileNo · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2026 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in California
There are 8,308 optometrist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 8,308 in California → Every provider in Eureka → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- David Flemmons, O.D.Eureka, CA 955011851432264
- Zuzana Gellner, O.D.Eureka, CA 955011568524213
- Kenneth Kaiser, ODEureka, CA 955011770635831
- Paul King, ODEureka, CA 955011205809928
- Douglas Lanning, O.D.Eureka, CA 955011750449211
- Danielle Lefever, ODEureka, CA 955011609183144
- Aaron Cole, O.D.Eureka, CA 955031841525920
- Megan Nativo, ODEureka, CA 955031841983772
Common questions
What is Daniel Ryan, O.D.'s NPI number?
Daniel Ryan, O.D.'s National Provider Identifier (NPI) is 1962491001, issued on Oct 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Ryan, O.D. located?
The NPPES record lists a practice address at 2437 Buhne St, Eureka, CA, 95501. Phone: (707) 443-4581. Providers update this record themselves, so call before visiting.
How can I verify Daniel Ryan, O.D.'s license?
NPPES lists California license number 6545T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.