Rex Aaron Werner, OD
- Part D claims, 2024
- 12
- Industry payments
- $218
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 2650 Jamacha Rd Suite 155 Suite 155, El Cajon, CA 92019-4319
- Practice phone
- Call (619) 670-6296
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Werner Optometry
Eye care practice · El Cajon, California
Find Rex Werner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Rex Aaron Werner is an optometrist in San Diego, California
Rex Werner practices at Werner Optometry in El Cajon, California.
Rex Werner's NPI, 1821259458, was assigned on June 17, 2008. Rex Werner graduated from Illinois College of Optometry at Chicago in 2008. Rex Werner holds California license CA 13478TPA.
- NPI
- 1821259458NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688867302
- NPI enumeration date
- June 17, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 670-6296
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Rex Aaron Werner practices in El Cajon and San Diego
Rex Werner's primary practice is Werner Optometry, at 2650 Jamacha Rd Suite 155 Suite 155, El Cajon, CA 92019-4319. The practice phone is (619) 670-6296. The NPI Registry lists Rex Werner's practice address as 8008 Frost St, San Diego, CA 92123.
- Werner OptometryPrimary2650 Jamacha Rd Suite 155 Suite 155, El Cajon, CA 92019-4319Phone(619) 670-6296
- NPI Registry address8008 Frost St, San Diego, CA 92123 · San Diego County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Rex Aaron Werner is affiliated with 1 site of care and 1 medical group
Rex Werner's primary practice is Werner Optometry in El Cajon, California. Dmand AI also links Rex Werner to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Rex Aaron Werner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Rex Werner practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Werner Optometry | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Rex Aaron Werner is one of 7,206 optometrists in California
Optometrist is Rex Werner's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Rex Werner is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Rex Werner
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Rex Aaron Werner's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Rex Werner's median patient age at 65, with 60% women.
Rex Werner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women60%
- Men40%
Source: Dmand AI Patient Panel Data
Rex Aaron Werner wrote 12 Medicare Part D claims in 2024
In 2024, Rex Werner wrote 12 Medicare Part D claims. 0% of them were for generic drugs.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Rex Aaron Werner takes part in Medicare
Rex Werner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Rex Aaron Werner received $218 in industry payments in 2025
CMS Open Payments shows 3 general payments to Rex Werner from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $125.
Companies that paid Rex Werner the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Rex Aaron Werner graduated from Illinois College of Optometry at Chicago
Rex Werner graduated from Illinois College of Optometry at Chicago in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Rex Aaron Werner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Rex Aaron Werner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Rex Aaron Werner's NPI number?
Rex Aaron Werner's NPI number is 1821259458. It was assigned on June 17, 2008, and it is active in the NPI Registry.
What does Rex Aaron Werner specialize in?
Rex Aaron Werner is an optometrist in San Diego, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Rex Aaron Werner practice?
Rex Werner practices at 2650 Jamacha Rd Suite 155 Suite 155, El Cajon, CA 92019-4319. Rex Werner also practices at 8008 Frost St, San Diego, CA 92123. Rex Werner's primary practice is Werner Optometry in El Cajon, California. Dmand AI also links Rex Werner to 1 medical group.
What is Rex Aaron Werner's office phone number?
The practice phone on file for Rex Werner is (619) 670-6296.
What is Rex Aaron Werner's medical license number?
Rex Werner holds California license CA 13478TPA.
Does Rex Aaron Werner accept Medicare?
Yes. CMS lists Rex Werner as accepting Medicare assignment.
Where did Rex Aaron Werner go to medical school?
Rex Werner graduated from Illinois College of Optometry at Chicago in 2008.
Has Rex Aaron Werner received payments from drug or device companies?
CMS Open Payments shows $218 in general payments to Rex Werner from 2 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Rex Aaron Werner been practicing?
Rex Werner graduated from medical school in 2008, 18 years ago.
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