Meet Our Physicians

James O’Brien, MD

Internal Medicine
Pulmonary Medicine
Director of Sleep Medicine

Board Certification

Board Certified in Internal Medicine
Board Certified in Pulmonary Medicine
Board Certified in Sleep Medicine

James C. O’Brien, MD is the Director of Sleep Medicine at Boston SleepCare. He has been in private practice for nearly 30 years and first became interested in sleep medicine over 24 years ago when he performed his first sleep study. At that time, he began to notice that many of his patients who did not respond to conventional medical treatments often improved dramatically after testing and treatment for a previously undiagnosed sleep disorder.

Dr. O’Brien has worked as a primary care physician, pulmonologist and sleep physician and has lectured extensively to healthcare professionals in both the United States and in Germany about sleep disorders. Additionally, he has appeared on many television and radio programs discussing the need for healthy sleep and the early treatment of sleep disorders.

Dr. O’Brien graduated from the University of Vermont and received his medical degree from New York Medical College in 1975. He completed his residency training in Internal Medicine and his fellowship in Pulmonary Medicine at Carney Hospital in Dorchester, MA and his graduate training in Sleep Medicine at McLean Hospital in Belmont, MA.

In addition to serving as the Director of Sleep Medicine at Boston SleepCare Center, Dr. O’Brien serves as the Medical Director at ProHealth Physicians Sleep Center in Hartford, CT.

Additional information about sleep disorders can also be found on his website at


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