Luis Humberto Barraza, MD


Dr. Luis Barraza is triple board-certified in Internal Medicine, Obesity Medicine and Gastroenterology. Dr. Barraza earned his medical degree from the New York University School of Medicine and went on to complete his Internal Medicine training at New York Presbyterian – Weill Cornell Medical College. He graduated from the prestigious Gastroenterology fellowship program at New York Presbyterian – Columbia University Irving Medical Center Gastroenterology, during which time he obtained certification in the medical management of obesity.

Dr. Barraza’s clinical interests cover a broad range of conditions including acid reflux, colitis, colon cancer screening and prevention, inflammatory bowel disease (IBD) including Crohn’s disease and ulcerative colitis, celiac disease, disorders of the stomach, irritable bowel syndrome (IBS), gastroesophageal reflux disease (GERD), peptic ulcer disease, swallowing disorders, chronic constipation, and liver diseases including hepatitis, fatty liver disease, cirrhosis and obesity. He is a firm believer in achieving and maintaining the health of his patients through lifestyle modifications and weight loss.

In his clinical care practice, Dr. Barraza performs upper GI endoscopy and colonoscopy with various diagnostic and therapeutic interventions including stricture dilation, BRAVO pH monitoring, esophageal variceal banding, and video capsule endoscopy.

Dr. Barraza derives much joy from developing strong relationships with his patients and is fluent in both English and Spanish. He takes great pride in offering compassionate, comprehensive, individualized care. Dr. Barraza has been named by his peers to the Rising Stars℠ Honorees list for 2022-2024. Dr. Barraza completed his first NYC Marathon in 2023 and appeared in the Western Region Ambulatory DEIB Council NYC Marathon Spotlight.


Tending his own garden.

A tick bite and a diagnosis of Lyme disease turned out to be just the first, small step on what would become a years-long health journey for Rob McQuilkin, a literary agent. During the COVID-19 pandemic, Rob, now 55, and his husband moved from New York City to a home in Tuxedo Park, New York. When he wasn’t working, Rob threw himself into country life, raising chickens and doing some serious gardening. Thinking back, he believes it was all that crawling through leaves and digging in the dirt that led to being bitten by a tick and contracting Lyme disease.

But Lyme, while serious, wasn’t his ultimate problem. Cancer would be.

This incredible patient testimonial shares how our Concorde physicians, internist, Dr. Jeffrey Engel and gastroenterologist, Dr. Luis Barraza, teamed up to uncover a rare form of pancreatic cancer for Rob McQuikin.

Medical School

MD – New York University School of Medicine


Internal Medicine – Weill Cornell Medical Center


Gastroenterology – Division of Gastroenterology and Hepatology, CUMC

Board Certifications

Gastroenterology – American Board of Internal Medicine
Obesity Medicine – American Board of Obesity Medicine
Internal Medicine – American Board of Internal Medicine

Languages Spoken


Insurances Accepted

Connecticare (applies to services rendered in NYS for Connecticare Commercial members ONLY)
Emblem (GHI) except for Emblem Millennium Network for all lines of business
Emblem (HIP) except Emblem Reserve (VIP Reserve) Medicare Plan
Empire BCBS except EBCBS Medicaid HMO
Empire Healthplus (Individual Network ONLY)
Railroad Medicare (Palmetto)
Humana Medicare
Northwell Direct
Oxford Plans except Oxford Metro
UHC Plans except UHC Core, UHC Charter Networks and Community Plan
UnitedHealthcare NYS Empire Plan (NYSHIP)

Concorde Medical Group participates with the above payors Commercial, Medicare and Individual Exchange Plans