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Gail M O'Brien, MD is a Internal Medicine Physician physician currently practicing at Massachusetts General Hospital in Boston, Massachusetts. They hold admitting privileges at 1 hospital(s), including MASSACHUSETTS GENERAL HOSPITAL. To see all the affiliations of Gail M O'Brien, MD, start a free trial.

Gail M O'Brien, MD is a board-certified Internal Medicine Physician physician. They practice at Massachusetts General Hospital in Boston, Massachusetts.

Gail M O'Brien, MD performs procedures across 163 clinical categories. Their most commonly billed procedures based on Medicare claims data include , , and . Full procedure and CPT code data is available to Dmand AI subscribers, start a free trial.

Gail M O'Brien, MD's National Provider Identifier (NPI) is 1548236466. This is a public identifier issued by CMS and can be verified at the NPPES NPI Registry. Their primary taxonomy code is 207R00000X, corresponding to Internal Medicine Physician.

The EHR and practice technology used by Gail M O'Brien, MD at Massachusetts General Hospital is available to Dmand AI subscribers. Sign up for a free trial to unlock the full technology stack.

Gail M O'Brien, MD accepts 0 insurance plans. A full list of accepted payers is available in the profile above.

Gail M O'Brien, MD holds hospital privileges at 1 institution(s). Their primary affiliation is MASSACHUSETTS GENERAL HOSPITAL in Boston, Massachusetts.

Gail M O'Brien, MD's board certification details are available to Dmand AI subscribers.

Gail M O'Brien, MD's education history is available to Dmand AI subscribers.

Based on CMS Medicare Part B claims data, Gail M O'Brien, MD served approximately 95 Medicare beneficiaries in 2023. Total patient volume including non-Medicare patients is available to Dmand AI subscribers.

Gail M O'Brien, MD is affiliated with MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC, a large (20+ physician) practice with 2214 physicians based in Boston, Massachusetts. The practice is independently owned.

Gail M O'Brien, MD has 0 indexed publications on record and no active clinical trial listings were found at time of last verification. Their research activity is available to Dmand AI subscribers. Sign up for a free trial to unlock their full research activity.