Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. William John Shaffer, OD

Individual provider Optometrist · NPI 1457451031

Dr. William John Shaffer, OD is an Optometry in Oxnard, California. Graduated from Southern College of Optometry in 1973, 53 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
53
Trained at
Southern College of Optometry
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

340 S 5th St
Oxnard, CA 93030-7043
Phone: (805) 487-6363
Fax: (805) 486-9698
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 5774T (CA)

Record details

NPI number1457451031
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedSeptember 24, 2006
Last updated in NPPESMay 14, 2008
Mailing address340 S 5th St, Oxnard, CA 93030-7043

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolSOUTHERN COLLEGE OF OPTOMETRY
Graduated 1973 (53 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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