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Same week appointments available 


Welcome to Summit Medical and Obesity Associates, where your well-being is our top priority!

At our clinic, we are dedicated to providing comprehensive and compassionate healthcare services that cater to all aspects of your health journey. Our team of highly skilled and experienced medical professionals is committed to helping you achieve optimal health and wellness, regardless of age or background. Our physicians are BOARD CERTIFIED in Internal Medicine and Obesity Medicine, trained at UPMC (University of Pittsburgh Medical Center) in McKeesport with more than 15 years of combined direct patient care experience. 

We understand that each patient is unique, which is why we take the time to listen to your concerns, understand your medical history, and tailor our treatments to meet your specific needs.

Our primary care services encompass a wide range of medical treatments, from routine check-ups and vaccinations to managing chronic conditions and coordinating specialist care. We believe in proactive healthcare, that’s why we partnered up with Athenahealth which gives you direct access to your medical records, lab results, the power to set up your own appointments online and communicate directly with your provider.


Obesity can be a complex and challenging issue, but rest assured, you're not alone on your journey towards a healthier weight and lifestyle. Our expert team is here to offer you personalized obesity management plans, combining evidence-based and FDA approved practices with unwavering support to help you achieve your weight loss goals safely and sustainably.

At our clinic we value your time and strive to provide efficient and streamlined services, so you can spend less time waiting and more time focusing on your well-being.

Discover a healthcare experience like no other at Summit Medical and Obesity Associates. Take the first step towards a healthier future today by scheduling an appointment at Together, let's embark on a journey towards improved health and vitality. We look forward to meeting and guiding you every step of the way!

About Us

Our Services

Primary Care

Full range of services including yearly physical, screening for cancer, hospital follow-ups, vaccines, sick visits, management of chronic diseases like hypertension, diabetes, heart failure, dyslipidemia and much more.  

Obesity Medicine

Our board certified team in obesity management can assist you with a personalized weight loss plan including diet and exercise recommendations as well as FDA approved medications.

This is offered through insurance or private pay. 


Offered exclusively to our established clinic patients after their free enrollment with Athena health. This cannot be offered to new patients remotely. 


Years of combined Experience

Board Certified

Assisstant Professors at UIW

Part of the Internal Medicine and Family Medicine Teaching faculty for the University of Incarnate Word

Meet the Team

Our two full time physicians



Nabil R. Barbara M.D.

Board Certified in Internal Medicine and Obesity Medicine. 

Assistant Professor for the Family Medicine residency program at UIW. 



Luis Carlos Corral Guerrero M.D. 

Board Certified in Internal Medicine and Obesity Medicine.


Assistant Professor for the Internal Medicine residency program at UIW. 

Doctor Using Digital Tablet

Accepted insurances

Superior health plan.jpg
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Our Address

6801 McPherson road

Suite 332

Laredo, TX 78041 


Tel:  (956) 441 0087 

Fax: (956) 441 0325

Office hours


Business Hours

Monday – Friday  8:30 AM – 5PM

Office closed for major holidays. 


Contact Us
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