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

Individual provider Optometrist · NPI 1427038959

Dr. John J. McDiarmid, OD is an Optometry in Murrieta, California. Graduated from Southern College of Optometry in 1990, 36 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
36
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

25395 Hancock Ave Ste 100
Murrieta, CA 92562-9054
Phone: (951) 696-5388
Fax: (951) 696-5391
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence OPT9467T (CA)

Record details

NPI number1427038959
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedJanuary 19, 2006
Last updated in NPPESDecember 9, 2010

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolSOUTHERN COLLEGE OF OPTOMETRY
Graduated 1990 (36 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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