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DR. REX ARTHUR WERNER O.D.
NPI 1891760716
Optometrist in El Cajon, CA

Active since February 22, 2006PECOS EnrolledAccepts Medicare Assignment
2650 JAMACHA RD, SUITE 155, EL CAJON, CA 92019(619) 670-6296(619) 670-8852 Get Directions Write a Review

NPPES record last updated: August 4, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Rex Arthur Werner O.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. REX ARTHUR WERNER O.D. (NPI 1891760716) is an individual optometrist in El Cajon, California, licensed in California (OPT9378TPL) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of University Alabama Birmingham - School Of Optometry (1989).

NPPES Registry Identity

NPI1891760716
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. REX ARTHUR WERNERCredential: O.D.
Location Address2650 JAMACHA RD, SUITE 155El Cajon, CA 92019-4319
Mailing Address2650 Jamacha Rd, Suite 155El Cajon, CA 92019-4319 · (619) 670-6296 · Fax (619) 670-8852
Phone(619) 670-6296
Fax(619) 670-8852
Sole ProprietorNo
Medical School CMSUniversity Alabama Birmingham - School Of OptometryGraduated 1989
Enumeration DateFebruary 22, 2006
Last NPPES UpdateAugust 4, 2010
✔ NPI 1891760716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in CA · OPT9378TPL
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
2650 JAMACHA RD, El Cajon, CA 92019
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Other Identifiers 3

Medicare UPINU25248CA
MedicaidSD0093780CA
Medicare ID-Type UnspecifiedOP9378CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Rex Arthur Werner O.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4082680798
PECOS Enrollment IDI20040903000544
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Photography of the retina 92250
Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.
220 services195 patients
Established patient complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
169 services167 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
73 services42 patients
Exam of visual field with extended testing 92083
An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
56 services31 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
55 services42 patients
Imaging of optic nerve 92133
Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).
53 services26 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92019 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REX AARON WERNER OD, INC
Optometrist
2650 JAMACHA RD, 155
EL CAJON, CA 92019
San Diego County (619) 670-6296
DR. REX AARON WERNER O.D.
Optometrist
2650 JAMACHA RD, SUITE 155
EL CAJON, CA 92019
San Diego County (619) 670-6296
WERNER OPTOMETRY, APC
Optometrist
2650 JAMACHA RD, SUITE 155
EL CAJON, CA 92019
San Diego County (619) 670-6296

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rex Werner's NPI number?

The NPI number for Rex Werner is 1891760716. It was assigned to this individual provider in the NPPES registry on February 22, 2006.

Where is Rex Werner located?

Rex Werner practices at 2650 Jamacha Rd Suite 155, El Cajon, CA 92019. The listed phone number is (619) 670-6296.

What is Rex Werner's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Rex Werner enrolled in Medicare?

Yes. Rex Werner is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Rex Werner accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list Rex Werner as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Rex Werner was last updated on August 4, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.