Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Louis Martin McMahon, OD

Individual provider Corneal and Contact Management Optometrist · NPI 1114919701

Dr. Louis Martin McMahon, OD is registered under Optometry in El Paso, Texas. Graduated from University of Houston - College of Optometry in 1985, 41 years ago. Practices with Aeg Texas Professional PLLC, a 228-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
41
Trained at
University of Houston - College of Optometry
Licensed in
TX
In the registry since
2005
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

9513 Viscount Blvd Ste B
El Paso, TX 79925-7025 Not confirmed with CMS for 11 years — call before visiting
Phone: (915) 590-9977
Fax: (915) 590-9976
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Corneal and Contact Management Optometrist (primary) Taxonomy 152WC0802X · Licence 3503TG (TX)

Record details

NPI number1114919701
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedAugust 18, 2005
Last updated in NPPESMarch 25, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolUNIVERSITY OF HOUSTON - COLLEGE OF OPTOMETRY
Graduated 1985 (41 years in practice)
Group practice Aeg Texas Professional Pllc — 228 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients17
Services billed 17 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $264 6 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Aeg Texas Professional PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 228 clinicians in the practice; 12 are shown here.

Other providers in El Paso