Expert Gastroenterology Care in New York City
Serving patients across all five boroughs and beyond.
Welcome AAA Gastrointestinal
Who We Are
AAA Gastrointestinal PC is a specialized gastroenterology practice located in Washington Heights, Northern Manhattan, providing advanced digestive and liver care to patients from across New York City, the Bronx, New Jersey, and beyond.
Led by Lincoln Hernandez, MD — a fellowship-trained gastroenterologist and former research fellow at Columbia University — the practice combines the expertise of an academic medical center with the personalized attention of a private practice. Dr. Hernandez holds a faculty appointment at the Icahn School of Medicine at Mount Sinai and maintains hospital affiliations with The Mount Sinai Hospital and Mount Sinai Queens.
We specialize in complex and chronic GI conditions including inflammatory bowel disease, chronic liver disease, motility disorders, celiac disease, and advanced endoscopic procedures. Our bilingual team is committed to delivering compassionate, high-quality care in both English and Spanish.
Se habla español.
Meet
Lincoln Hernandez, mD
Lincoln Hernandez, MD is a board-certified gastroenterologist with over 20 years of experience, practicing in New York City since 2012. He is an Assistant Clinical Professor of Medicine at the Icahn School of Medicine at Mount Sinai, with hospital affiliations at The Mount Sinai Hospital and Mount Sinai Queens.
Dr. Hernandez completed his residency in Internal Medicine at NYU Downtown Hospital, where he received the Program Director's Award and the John T. Flynn Young Investigator Award. He then pursued a fellowship in Clinical Nutrition at NewYork-Presbyterian Hospital/Columbia University Medical Center, where he served as an Instructor in Clinical Medicine and subsequently became a research fellow at Columbia University's renowned Celiac Disease Center. During this time, he co-authored multiple peer-reviewed publications on celiac disease diagnosis, quality of life, and gastrointestinal outcomes. He completed his fellowship training in Gastroenterology and Hepatology at Tulane University School of Medicine in New Orleans, followed by clinical work at Ochsner Clinic in Baton Rouge, where he developed expertise in complex therapeutic endoscopy.
Dr. Hernandez's clinical focus reflects the depth of his training. He specializes in inflammatory bowel disease — including Crohn's disease and ulcerative colitis — chronic liver disease, celiac disease, colon cancer prevention, and reflux and motility disorders. He has served as a Principal Investigator in clinical drug trials focused on MASLD (metabolic-associated steatotic liver disease), placing him at the forefront of emerging treatments for fatty liver disease. He is one of a small number of gastroenterologists in New York with both clinical and research-level expertise in celiac disease, a condition that remains significantly underdiagnosed in the United States.
In addition to his office practice in Washington Heights, Dr. Hernandez performs procedures at Gramercy Park Digestive Disease Center, an AAAHC-accredited ambulatory surgery center in Midtown Manhattan, offering patients across New York City convenient access to high-quality endoscopic care.
Dr. Hernandez is fluent in English and Spanish and is committed to culturally sensitive, patient-centered care for the diverse communities he serves.
Lincoln Hernandez, MD
Gastroenterologist
New York, NY
in our office we use
Advanced diagnostic technologies
Our offices have available advanced diagnostic technologies and state-of-the-art tech to facilitate the procedures to guarantee a pleasant experience for each one of our visiting clients. This technology includes capsule endoscopy and Targeted radio-frequency procedures such as Stretta treatment for GERD(Heartburns).
Happy Patients
He was extremely knowledgeable. He took his time asking questions and made sure I understood all the information. Great doctor.
I've been a patient for many year and I must say that I am very pleased to have Dr. Hernandez as my provider
our clinic's
Specialities
Inflammatory Bowel Disease
(e.g., Crohn’s and Ulcerative colitis).
Chronic Liver Diseases
(e.g., Fatty Liver, Hepatitis C, and Hepatitis B).
Irritable bowel syndrome (IBS)
A common gastroinstestinal disorder characterized by a mix of pain or discomfort and trouble with bowel habits
Gastric Reflux Disease (GERD)
Occurs when stomach acid frequently flow back into the esophagus.
Cancer Prevention
Actions taken to lowers the risk of getting cancer. (e.g, Colon cancer).
Diets
Diets tailored to your specific gastric needs.
visit us
Make An Appointment
AAA Gastrointestinal PC Lincoln Hernandez, MD is located in 495 Fort Washington Ave Ste PE1C New York, NY 10033
Se habla español.