Rex Aaron Werner OD, Inc
NPI 1578010534 · Optometrist · El Cajon, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rex Aaron Werner OD, Inc is a Optometrist organization in El Cajon, CA (NPI 1578010534).
Provider details
- NPI number
- 1578010534
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- R. Aaron Werner, Owner(619) 670-6296
- License
- 13478TLG (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Werner Optometry
Registry dates
- Enumerated
- 2016-09-07
- Last updated
- 2016-09-07
Frequently asked questions
- What is Rex Aaron Werner OD, Inc's NPI number?
- Rex Aaron Werner OD, Inc's National Provider Identifier (NPI) is 1578010534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Rex Aaron Werner OD, Inc?
- Rex Aaron Werner OD, Inc is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is Rex Aaron Werner OD, Inc located?
- Rex Aaron Werner OD, Inc's practice location on file with NPPES is 2650 Jamacha Rd, El Cajon, CA 92019-6316.
- What is Rex Aaron Werner OD, Inc's phone number?
- The practice phone number listed in the NPPES registry for Rex Aaron Werner OD, Inc is (619) 670-6296.
- Does Rex Aaron Werner OD, Inc accept Medicare?
- Rex Aaron Werner OD, Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Rex Aaron Werner OD, Inc?
- The authorized official listed on Rex Aaron Werner OD, Inc's NPPES record is R. Aaron Werner, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Rex Aaron Werner OD, Inc's NPI active?
- Yes — Rex Aaron Werner OD, Inc's NPI (1578010534) is active in the NPPES registry as of the last update on 2016-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.