Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Rex Aaron Werner, OD

Individual provider Optometrist · NPI 1821259458

Dr. Rex Aaron Werner, OD is an Optometry in El Cajon, California. Graduated from Illinois College of Optometry at Chicago in 2008, 18 years ago. Practices with Rex Aaron Werner OD, Inc, a 5-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
18
Trained at
Illinois College of Optometry at Chicago
Licensed in
CA
In the registry since
2008
Specialties on file
2
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2650 Jamacha Rd Ste 155
El Cajon, CA 92019-4319
Phone: (619) 670-6296
Fax: (619) 670-8852
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence CA 13478TPA (CA)
Vision Therapy Optometrist Taxonomy 152WV0400X · Licence CA 13478TPA (CA)

Record details

NPI number1821259458
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedJune 17, 2008
Last updated in NPPESJune 17, 2008
Mailing address2650 Jamacha Rd, Suite 155, El Cajon, CA 92019-4319

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 2008 (18 years in practice)
Group practice Rex Aaron Werner Od, Inc — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in El Cajon