Dr. Jacob E. Lemieux, MD

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

Dr. Lemieux's NPI, 1033590450, was assigned on June 11, 2015. Dr. Lemieux graduated from Harvard Medical School in 2015. Dr. Lemieux holds Massachusetts license 282342.

Dr. Lemieux'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. Lemieux's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Lemieux to 1 more community health center and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lemieux practices, 2 sites in all. Vendor and product names are available with a free account.

Infectious disease is Dr. Lemieux's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Lemieux is licensed in Massachusetts.

CMS data shows 147 Medicare services from Dr. Lemieux across 5 procedure codes in 2024, for 76 Medicare patients. Medicare paid $12,812 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 76 Medicare patients who saw Dr. Lemieux in 2024. The largest group is 75 to 84, with 32 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 2.47, 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. Lemieux's median patient age at 72, with 47% women.

In 2024, Dr. Lemieux wrote 180 Medicare Part D claims for 33 patients. 71% of them were for generic drugs. CMS names the drug for 85 of them, across 5 drugs with 11 or more claims each, at $11,599 in total drug cost. In 2023, CMS named 71 claims across 4 drugs.

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

Dmand AI links 79 papers to Dr. Lemieux, published from 2010 to 2025. 2021 was the busiest year, with 13. The most frequent topics are COVID-19, SARS-CoV-2 and Borrelia burgdorferi. Dr. Lemieux has published most often in medRxiv. Dr. Lemieux's most frequent co-authors are Jonathan Zheng Li, MD, Mark Jacob Siedner, MD and Sarah E. Turbett, MD.

Dr. Lemieux graduated from Harvard Medical School in 2015.