We know the earlier a problem is detected, the better chance of treatment.

That's why at Rio Grande Regional Hospital, we are committed to providing fast, accurate lab tests and screening results. From routine blood work to advanced screenings for heart disease and diabetes, we work alongside your physician to help give you the best chance at living a long, healthy life.

Our care team includes skilled pathologists, phlebotomists and medical technologists who are available 24/7 for emergency testing.

McAllen diagnostics and laboratory services

Our full-service lab is accredited by the College of American Pathologists, recognizing our stringent regulatory requirements and affirming our commitment to accuracy and quality.

We offer more than 30 common lab tests and wellness screenings, ranging from allergy and cholesterol tests to glucose and thyroid tests. Health and wellness screenings that are requested by you or your physician as a part of a routine checkup typically do not require an appointment.

We provide various laboratory services, including:

  • Anatomic pathology
  • Blood bank testing
  • Hematology/coagulation
  • Histology
  • Microbiology and molecular testing
  • Serology
  • Urinalysis

Regional medical laboratories

In addition to our hospital-based laboratory, our services are extended into the community at three regional medical labs located in north McAllen, south McAllen and San Juan. Our full-service laboratories provide affordable access to a range of same-day screenings and tests. Many of our wellness screenings and common lab tests do not require a physician's order.


Regional Medical Laboratory – North

5018 North 10th Street, Suite C
McAllen, TX 78504
(956) 682-0502
Monday through Friday: 7:00am to 12:30pm and 1:30pm to 5:00pm; Saturday: 8:00am to noon

Regional Medical Laboratory – South

901 South 10th Street, Suite 340
McAllen, TX 78501
(956) 631-7806
Monday through Friday: 7:00am to 12:30pm and 1:30pm to 5:00pm

Regional Medical Laboratory – East

707 W Expressway 83, Ste 600
San Juan, TX 78589
(956) 787-1672
Monday through Friday: 7:00am to 12:30pm and 1:30pm to 5:00pm