Doctor profile · Federal record
Dr. Rex Werner, O.D.
Optometrist (CMS: Optometry) · El Cajon, CA
- NPI 1891760716
- Accepts Medicare
- 37 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2650 Jamacha RD, Suite 155
El Cajon, CA 920194319
(619) 670-6296
fax (619) 670-8852
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- August 4, 2010
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- California #OPT9378TPL
- Medicaid
- CA #SD0093780
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1891760716. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
636
Distinct HCPCS
9
Medicare allowed
$55,689
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92250 |
Photography of the retina | 205 | 186 | $41 | |
92014 |
Established patient complete exam of visual system | 153 | 153 | $140 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 71 | 43 | $97 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 61 | 41 | $137 | |
92133 |
Imaging of optic nerve | 38 | 21 | $39 | |
92134 |
Imaging of retina | 34 | 23 | $42 | |
92004 |
New patient complete exam of visual system | 30 | 30 | $165 | |
92083 |
Exam of visual field with extended testing | 22 | 17 | $70 | |
92284 |
Evaluation of eye adaptation to light and dark with interpretation and report | 22 | 17 | $54 |
In context: peer comparison
Among 1 peers in El Cajon Optometrist, average services per provider: 70. This provider delivers 9.1× the peer median.Open Payments
Industry payments received
All-time total
$468
Transactions
7
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Alcon Vision LLC | 2 | $180.45 | |
| Lkc Technologies, INC. | 1 | $126.13 | |
| CooperVision INC. | 1 | $86.39 | |
| Abbvie INC. | 2 | $52.43 | |
| Biotissue Holdings INC. | 1 | $23.08 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
160
Patients
20
Total drug cost
$44,223
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 101 | 20 | $1,320 |
| Lumigan (Bimatoprost) | Brand | 16 | 0 | $11,218 |
| Restasis (Cyclosporine) | Brand | 16 | 0 | $20,757 |
| Brimonidine Tartrate-Timolol (Brimonidine Tartrate/Timolol) | Brand | 14 | 0 | $2,421 |
| Cyclosporine | Generic | 13 | 0 | $8,507 |
Frequently asked questions
What is Dr. Rex Werner's medical specialty?
Dr. Rex Werner practices Optometrist in El Cajon, CA.
Where does Dr. Rex Werner practice?
Dr. Rex Werner practices at 2650 Jamacha RD, El Cajon, CA 920194319. Office phone: 6196706296.
What is Dr. Rex Werner's NPI?
Dr. Rex Werner's National Provider Identifier (NPI) is 1891760716, issued by NPPES.
Does Dr. Rex Werner accept Medicare assignment?
Yes. Dr. Rex Werner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Rex Werner commonly perform?
Top Medicare-reported procedures in 2023: Photography of the retina (HCPCS 92250); Established patient complete exam of visual system (HCPCS 92014); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.