Summary

Dr. Tres Barrera is an endocrinologist specializing in diabetes and metabolism, with additional expertise in internal medicine. He earned his medical degree from the University of Texas Health Science Center at Houston and completed his residency training at the University of Colorado Health Sciences Center. Dr. Barrera furthered his specialized training through a fellowship at Baylor College of Medicine in 2011. With 20 years of clinical experience, he holds board certification in internal medicine from the American Board of Internal Medicine and provides care in English.

Dr. Barrera practices at Baylor Scott And White Medical Center Round Rock, with clinic locations in Georgetown and Round Rock, Texas. He focuses on managing high blood pressure conditions, including pediatric hypertension cases and hypertensive emergencies. His practice includes essential diabetes monitoring through A1c testing and comprehensive metabolic assessments using lipid panels and liver function tests. Patients consistently rate Dr. Barrera highly, giving him an average rating of 4.9 out of 5 stars.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.9
  • 20 years of experience
  • 27 insurance plans accepted
  • speaks English
  • Baylor College of Medicine
  • 138 written reviews
  • 1 award
  • 2 specialties
  • 14 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Awards

  • Vitals Preferred Provider

    • Vitals Preferred Provider Award
      • Preferred Provider badge recognizes providers that are committed to transparency, responsiveness and great service to patients, and have earned a high patient satisfaction rating.

  • Click for our Methodology

Office Locations

Tres Barrera has 2 locations

Baylor Scott & White Clinic - Georgetown

4945 Williams DrGeorgetown, TX 78633
Mon7:30 am - 5:00 pm
Tue7:30 am - 5:00 pm
Wed7:30 am - 5:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

Baylor Scott & White Clinic - Round Rock 425 University

425 University BlvdRound Rock, TX 78665
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Tres Barrera, MDDr. Perihan Dimachkie, MDAndrea Lynn MccoyDr. Nicole Sheung, DO
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.9 
20 Years of Experience 15 Years of Experience 8 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks Arabic, English Speaks English
Georgetown , TXHouston , TXCHICAGO , ILCypress , TX
Med School: University of Texas Health Science Center at Houston (Education) Med School: American University of Beirut Medical Center (AUBMC) Med School: Marian University College of Osteopathic Medicine
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Insurance Plans Accepted by Tres Barrera

  • Aetna
  • Ambetter
  • APWU
  • Ascension Health
  • Ascension Health - PPO
  • Baylor Scott & White Health Plan
  • Blue Cross Blue Shield of Illinois
  • Blue Cross Blue Shield of Texas
  • Blue Cross Blue Shield of Texas - Medicaid
  • Blue Shield of California
  • CHAMPVA
  • Cigna
  • Devoted Health
  • Hometown Health
  • Humana
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Meritain Health
  • Mutual of Omaha
  • Oscar Health Insurance
  • State Farm
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - Medicare
  • Wellcare

Medical Specialties

Tres Barrera has the following 2 specialties

Specialty Expertise

Tres Barrera has the following 14 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cushing Disease
  • Diabetes
  • Diabetes (Types I & II)
  • Diabetes Mellitus, Type 1
  • Fatigue
  • Gland Issues
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Internal Medicine
  • Parathyroid Diseases

Certifications, License, & Education

20 Years Experience

Tres Barrera holds an expired medical license in the state of Texas. They are board certified in Internal medicine by the American Board of Internal Medicine.

Board Certifications

Board certified in Internal medicine by the American Board of Internal Medicine.

Medical License

Medical Doctor with an expired medical license in the state of Texas that expired in 2026.

Education & Training

Fellowship

Completed their fellowship at Baylor College of Medicine in 2011.

Residency

Completed their residency at University of Colorado Health Sciences Center in 2009 and University of Colorado Health Sciences Center in 2007.

Medical School

Graduated from University of Texas Health Science Center at Houston (Education) in 2006.

NPI Number

Tres Barrera's NPI number is 1942356522.

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Frequently Asked Questions

Which hospitals is Tres Barrera affiliated with?
Tres Barrera is affiliated with Baylor Scott And White Medical Center Round Rock.
Does Tres Barrera accept virtual/telehealth appointments?
Tres Barrera has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Tres Barrera accept my insurance?
You can see the insurance plans that Tres Barrera accepts on their Vitals profile.
How can I make an appointment with Tres Barrera?
You can find contact information for Tres Barrera here on Vitals.
Where is Tres Barrera's office located?
Tres Barrera's office is located at 4945 Williams Dr, Georgetown, TX, 78633.

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