Gastroenterologist, Internist, and Primary Care Physicians in North Lindenhurst, NY

LI Medical Group is an advanced, independent clinical practice delivering high-quality, remarkable, and individualized care to patients in North Lindenhurst, NY, and its surrounding areas.

Whether it's a urinary tract infection, ear infection, or sinus, our experienced gastroenterologist, internist, and primary care physicians can diagnose and treat it. Allergy testing, arterial Doppler, annual physicals, carotid Doppler, Holter monitors, etc., are just a few examples of the cutting-edge diagnostic procedures available at this facility.

Our specialists' team is well-versed in all areas of gastroenterology, from inflammatory bowel diseases and colorectal cancer to interventional gastrointestinal endoscopy and pediatric gastroenterology. Our Gastroenterologists, Internal Medicine physicians, and Primary care doctors work together to stay abreast of developing knowledge in the field of gastroenterology.

When evaluating the digestive system by colonoscopy or upper endoscopy, our specialized medical team places a premium on making an accurate diagnosis by using cutting-edge technology and high-definition imaging.

Dr. Ronald Fagan and his team of specialists aim to help patients of all ages, from infants to the elderly, maintain optimal health.

It is our firm belief that the greatest approach to assist our patients is to form enduring relationships with them. We provide the following primary care services to all of our patients and provide them as part of our treatment options:

  • Performs routine screenings
  • Familiar of the patient's whole medical history
  • Diagnose health issues early
  • Minimizes visits to the hospital or ER
  • Refer patients to medical specialists

Our medical staff consists of board-certified doctors who have completed extensive training and can accurately diagnose and treat a wide variety of gastrointestinal conditions, such as;

  • Hemorrhoids or Fissures.
  • Irritable Bowel Syndrome.
  • Frequent heartburn.
  • Abnormal bowel movements.
  • Colorectal Cancer Screening

Although minor medical problems rarely progress to serious ones, it is still important to have an internist you can trust to provide an accurate diagnosis and provide sound treatment guidance. Provided by internists, patients can expect to receive the following services:

  • Preventive, wellness screenings and immunizations
  • Collaboration with medical experts
  • Complete physical examinations
  • Treatment of simple and complex medical issues
  • Pre and post-operative care
  • Management of Chronic disease

If you or a loved one needs basic medical treatment, such as colon cancer screening by colonoscopy, or more advanced medical attention, such as the evaluation and therapy of reflux illnesses, Dr. Fagan and other doctors may be the best choice.

Dr. Ronald Fagan and his team of specialists aim to help patients of all ages, from infants to the elderly, maintain optimal health.

If you or a family member require a Gastrointestinal, Internist, and primary care need in the North Lindenhurst, New York area, you can reach us at (516) 752-7000 or

Our expert staff works hard to speak with you as soon as possible and to provide you with the best treatment options available.