Active NPI 1891760716 Individual Practitioner Male Practitioner

Dr. Rex Arthur Werner , OD

Optometrist • El Cajon, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Rex Werner, OD is a certified Optometrist practicing in El Cajon, CA. With approximately 37 years of clinical experience since graduating from University Alabama Birmingham - School Of Optometry in 1989, Dr. Werner delivers high-quality medical care to the local community at 2650 JAMACHA RD.

Dr. Werner is affiliated with Rex Aaron Werner Od, Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include photography of the retina, established patient complete exam of visual system, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2650 Jamacha Rd
Suite 155

El Cajon, CA 920194319

Telephone 6196706296

Fax 6196708852

Associated Practice Facility / Clinic

🏢 Werner Optometry, Apc Facility NPI 1851617666

Medicare Profile & Education

Medical School

University Alabama Birmingham - School Of Optometry

Graduation Year

1989

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in El Cajon, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

37 Yrs +22.0 yrs vs City Avg

City Avg: 15.0 Yrs

State Avg: 21.9 Yrs

Regional Practice Density

26 Specialists

Practicing in El Cajon, CA (8588 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

36.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Werner (37 Years) 37 Yrs

El Cajon Specialty Average (15.0 Years) 15.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92250 Photography of the retina	220	195	$127.77	$40.57
92014 Established patient complete exam of visual system	169	167	$155.00	$138.70
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	73	42	$155.41	$136.93
92083 Exam of visual field with extended testing	56	31	$159.00	$71.08
99213 Established patient office or other outpatient visit, typically 15 minutes	55	42	$115.00	$97.47
92133 Imaging of optic nerve	53	26	$118.00	$36.90
92134 Imaging of retina	41	25	$118.00	$41.24
92284 Evaluation of eye adaptation to light and dark with interpretation and report	27	22	$75.00	$43.34
92004 New patient complete exam of visual system	27	27	$175.00	$163.07
92020 Examination of cornea and iris using lens device and slit lamp	19	17	$79.00	$29.82
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	14	$79.00	$61.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92250 Photography of the retina	205	186	$128.12	$41.21
92014 Established patient complete exam of visual system	153	153	$155.00	$139.90
99213 Established patient office or other outpatient visit, typically 15 minutes	71	43	$115.00	$97.09
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	61	41	$155.00	$136.82
92133 Imaging of optic nerve	38	21	$118.00	$39.27
92134 Imaging of retina	34	23	$118.00	$42.28
92004 New patient complete exam of visual system	30	30	$175.00	$164.99
92083 Exam of visual field with extended testing	22	17	$159.00	$69.56
92284 Evaluation of eye adaptation to light and dark with interpretation and report	22	17	$75.00	$53.96

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92250 Photography of the retina	207	174	$128.13	$41.00
92014 Established patient complete exam of visual system	141	140	$152.87	$140.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	67	46	$154.91	$138.44
99213 Established patient office or other outpatient visit, typically 15 minutes	58	45	$112.41	$98.60
92133 Imaging of optic nerve	33	20	$118.00	$39.90
92134 Imaging of retina	32	22	$118.00	$42.54
92004 New patient complete exam of visual system	30	30	$173.00	$165.51
92284 Evaluation of eye adaptation to light and dark with interpretation and report	28	22	$75.00	$65.86
92083 Exam of visual field with extended testing	15	13	$159.00	$70.20

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92250 Photography of the retina	195	158	$127.62	$42.92
92014 Established patient complete exam of visual system	104	104	$145.00	$140.65
99213 Established patient office or other outpatient visit, typically 15 minutes	99	60	$109.00	$99.04
92284 Evaluation of eye adaptation to light and dark with interpretation and report	39	28	$70.00	$67.24
92004 New patient complete exam of visual system	38	38	$165.00	$165.00
92083 Exam of visual field with extended testing	23	18	$159.00	$70.49
92133 Imaging of optic nerve	23	17	$118.00	$39.70
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	15	$79.00	$61.51

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92250 Photography of the retina	164	143	$127.90	$49.30
92014 Established patient complete exam of visual system	97	97	$134.91	$134.14
99213 Established patient office or other outpatient visit, typically 15 minutes	81	50	$109.00	$80.90
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	52	52	$59.00	$46.26
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	36	36	$89.00	$72.86
92004 New patient complete exam of visual system	27	27	$145.56	$145.14
92133 Imaging of optic nerve	20	13	$118.00	$40.80
92284 Evaluation of eye adaptation to light and dark with interpretation and report	15	12	$70.00	$66.83

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	410	391	$59.00	$45.63
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	226	212	$89.00	$71.44
92250 Photography of the retina	184	150	$127.53	$54.43
92014 Established patient complete exam of visual system	109	108	$134.05	$132.16
99213 Established patient office or other outpatient visit, typically 15 minutes	108	52	$109.00	$78.31
92133 Imaging of optic nerve	21	16	$118.00	$40.00
92004 New patient complete exam of visual system	20	20	$144.25	$142.35
92284 Evaluation of eye adaptation to light and dark with interpretation and report	17	16	$70.00	$67.78
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	14	$77.75	$47.98
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	15	15	$59.00	$45.63

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	385	373	$57.18	$44.73
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	188	179	$85.81	$69.33
92250 Photography of the retina	171	139	$126.89	$59.46
92014 Established patient complete exam of visual system	109	109	$134.14	$130.52
99213 Established patient office or other outpatient visit, typically 15 minutes	98	61	$109.00	$74.11
83861 Microfluid analysis of tears	40	18	$24.50	$22.03
92004 New patient complete exam of visual system	23	23	$144.00	$142.20
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	15	15	$59.00	$44.70

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	463	447	$49.00	$44.22
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	218	214	$69.00	$66.85
92250 Photography of the retina	183	153	$123.59	$66.14
92014 Established patient complete exam of visual system	104	104	$134.48	$126.11
83861 Microfluid analysis of tears	77	37	$24.50	$22.21
99213 Established patient office or other outpatient visit, typically 15 minutes	72	44	$109.00	$73.25
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	36	26	$79.00	$44.04
92004 New patient complete exam of visual system	34	34	$143.56	$139.58
92083 Exam of visual field with extended testing	26	23	$159.00	$64.03
92133 Imaging of optic nerve	18	13	$118.00	$36.51
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	18	$149.00	$107.81

Medical Specialties & State Licenses

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License CA OPT9378TPL

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

SD0093780 (CA)

Hospital & Practice Group Affiliations

Rex Aaron Werner Od, Inc

2650 Jamacha Rd, El Cajon, CA 920194319

Phone: 6196706296

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners

Dr. Rex Werner , OD

Optometrist

NPI 1821259458

Doctor of Optometry

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active August 04, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location August 04, 2010

Registered at 2650 JAMACHA RD, SUITE 155, EL CAJON, CA 920194319 (Tel: 6196706296)

📍

Updated Business Mailing Address August 04, 2010

Registered at 2650 JAMACHA RD, SUITE 155, EL CAJON, CA 920194319 (Tel: 6196706296)

👤

Provider Name / Credentials Updated August 04, 2010

Recorded as REX WERNER, O.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 04, 2010

Optometrist (License #OPT9378TPL in CA)

🟢

Initial NPI Registration & Enumeration February 22, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1891760716

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: February 22, 2006

Last Update: August 04, 2010

Sole Proprietor: No

Update or Correct Profile

Mailing Address

2650 Jamacha Rd, Suite 155

El Cajon, CA 920194319

Phone: 6196706296

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.