Gastroenterologists in Lancaster, CA

The brief descriptions below are designed to familiarize you with our staff's training, professional credentials and work experience.



Canagaratnam Pathmarajah, MD -Retired as of 01/01/2019

Dr. Pathmarajah is a fellow of the American College of Physicians, member of the American Society of Gastrointestinal Endoscopy, and member of American College of Gastroenterology. He is also Board Certified in Pathology, both clinical and laboratory pathology.

Dr. Pathmarajah has been in private practice for more than 30 years in the Antelope Valley area caring for the patients in the specialty of Internal Medicine and Gastroenterology. He has dedicated much of his time in the care of elderly patients and has gained enormous experience in the routine diagnostic and therapeutic endoscopic procedures through these years.

Dr. Pathmarajah has encountered large number of young as well as elderly patients with anorectal disorders and rectal hemorrhage mainly from hemorrhoids. He has, therefore, taken special interest in caring for these patients. His intention is to provide effective and painless cure for these patients who suffer from chronic discomfort. High Desert Gastroenterology, Inc. is now well equipped with state-of-the-art instruments that are utilized for effective cure of the patients who com with such complaints.






Raman M. Patel, M.D., MRCP, FACP, FACG, CPI

Dr. Raman M. Patel has been practicing Gastroenterology in Antelope Valley for the last 30 years. He started with solo practice and merged with Dr. Pathmarajah in four months to form High Desert Gastroenterology. He was instrumental in expanding and enhancing gastroenterology practice in Antelope Valley, from primary diagnostic endoscopic procedures in office to highly complex therapeutic procedures in hospital setting. Thereby facilitating comprehensive gastroenterology care to the residents of Antelope Valley.

High Desert Gastroenterology is now composed of well accomplished and skillfully trained young gastroenterologist, who provides efficient gastroenterology subspecially care. Dr. Patel also engineered, well-equipped, state-of-the-art outpatient endoscopy center as well as gastroenterology/histopathology lab in the office.

Dr. Patel graduated with MBBS from B.J. Medical College, in Ahmedabad, India. He completed his three years of Residency in Internal Medicine in three different countries, earning MD from Gujarat University, Ahmedabad, India; MRCP from Royal College of Physicians in Edinburgh, Scotland; Internal Medicine Board Certification from New York, USA. Dr. Patel performed his fellowship in Gastroenterology and Hepatology at Brooklyn Veterans Administration Medical Center in Brooklyn, New York.

Dr. Patel is Board Certified in Internal Medicine and Gastroenterology and Fellow of American College of Physicians and American College of Gastroenterology. He is a member of Royal College of Physicians  of United Kingdom. He is an active member of American Society of Gastrointestinal Endoscopy since 1980. He is a certified physician investigator.

Dr. Patel has served on many committees including executive at both local hospitals and has done clinical research for 10 years for High Desert Gastroenterology. Dr. Patel has published many articles and continued to be active in practice in all aspects of Gastroenterology and Hepatology.