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

Dr. Luis Angel Reyes Mercado, MD

Individual provider Emergency Medicine Physician · NPI 1669676979

Dr. Luis Angel Reyes Mercado, MD practises Emergency Medicine in Round Rock, Texas. Graduated from University Central Del Caribe Escuela De Medicina in 2005, 21 years ago. Practices with Comal Emergency Physicians PLLC, a 77-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
21
Trained at
University Central Del Caribe Escuela De Medicina
Licensed in
TX
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

300 University Blvd
Round Rock, TX 78665-1032
Phone: (512) 509-0100
Fax: (512) 218-6330
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence P4804 (TX)

Record details

NPI number1669676979
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 12, 2007
Last updated in NPPESJune 24, 2026
Certification dateJune 24, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY CENTRAL DEL CARIBE ESCUELA DE MEDICINA
Graduated 2005 (21 years in practice)
Group practice Comal Emergency Physicians Pllc — 77 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 patients372
Services billed 480 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Comal Emergency Physicians PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 77 clinicians in the practice; 12 are shown here.

Other providers in Round Rock