Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Ona Mae Reiko Shiroyama, OD

Individual provider Optometrist · NPI 1932142841

Dr. Ona Mae Reiko Shiroyama, OD is an Optometry in Ventura, California. Graduated from Illinois College of Optometry at Chicago in 1979, 47 years ago. Practices with Ventura Optometric Vision Care Inc, a 6-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
47
Trained at
Illinois College of Optometry at Chicago
Licensed in
CA
In the registry since
2006
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

1280 S Victoria Ave Ste 100
Ventura, CA 93003-6555
Phone: (805) 650-9922
Fax: (805) 650-6656
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 6802T (CA)

Record details

NPI number1932142841
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedJune 14, 2006
Last updated in NPPESJanuary 11, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 1979 (47 years in practice)
Group practice Ventura Optometric Vision Care Inc. — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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