Dr. Mark Garret, MD

Dr. Garret practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.

Dr. Garret's NPI, 1245683226, was assigned on July 14, 2016. Dr. Garret holds New Hampshire license 33832.

Dr. Garret's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.

Dr. Garret's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Garret is also affiliated with Dartmouth Hitchcock Medical Center. The medical group on file is Dartmouth Hitchcock Medical Center. Dmand AI also links Dr. Garret to 3 more hospitals, 3 medical groups and 1 community health center, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Garret practices, 6 sites in all. Vendor and product names are available with a free account.

Neurology is Dr. Garret's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Garret's licenses on file in 3 states: New Hampshire, Massachusetts and Missouri.

CMS data shows 116 Medicare services from Dr. Garret across 2 procedure codes in 2024, all of them office visits, for 93 Medicare patients. Medicare paid $17,300 for them. Every service was in an office.

CMS counts 93 Medicare patients who saw Dr. Garret in 2024. The largest group is 65 to 74, with 43 patients. 69% of them have high blood pressure, and 68% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.53, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Garret's median patient age at 61, with 53% women.

In 2024, Dr. Garret wrote 705 Medicare Part D claims for 77 patients. 53% of them were for generic drugs. CMS names the drug for 580 of them, across 11 drugs with 11 or more claims each, at $4,022,049 in total drug cost. In 2023, CMS named 533 claims across 7 drugs.

Dr. Garret accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Garret as offering telehealth.

Dmand AI links 10 papers to Dr. Garret, published from 2011 to 2025. 2024 was the busiest year, with 5. The most frequent topics are Amyotrophic Lateral Sclerosis and C9orf72 Protein. Dr. Garret has published most often in Muscle Nerve. Dr. Garret's most frequent co-authors are Suma Babu, MBBS, MPH, Matthew B. Harms, MD and Doreen Tam Ho, MD.

CMS Open Payments shows 2 general payments to Dr. Garret from 2 drug and device companies from 2019 to 2023. Food and beverage make up the largest share, 81% of the total. Genentech, Inc. paid the most, $121.