Dr. James Louis Januzzi Jr., MD

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

Dr. Januzzi's NPI, 1699757062, was assigned on November 18, 2005. Dr. Januzzi graduated from New York Medical College in 1994. Dr. Januzzi holds Massachusetts license 150914.

Dr. Januzzi'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. Januzzi's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Januzzi is also affiliated with Brigham and Women's Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Januzzi to 3 more hospitals, 1 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. Januzzi practices, 6 sites in all. Vendor and product names are available with a free account.

Cardiovascular disease is Dr. Januzzi's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Januzzi is licensed in Massachusetts.

CMS data shows 807 Medicare services from Dr. Januzzi across 8 procedure codes in 2024, for 317 Medicare patients. Medicare paid $50,551 for them.

CMS counts 317 Medicare patients who saw Dr. Januzzi in 2024. The largest group is 75 to 84, with 143 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.65, 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. Januzzi's median patient age at 76, with 35% women.

In 2024, Dr. Januzzi wrote 2,992 Medicare Part D claims for 318 patients. 75% of them were for generic drugs. CMS names the drug for 2,813 of them, across 41 drugs with 11 or more claims each, at $1,308,848 in total drug cost. In 2023, CMS named 2,646 claims across 35 drugs.

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

Dmand AI links 693 papers to Dr. Januzzi, published from 2005 to 2025. 2022 was the busiest year, with 50. The most frequent topics are Heart Failure, Natriuretic Peptide, Brain and Stroke Volume. Dr. Januzzi has published most often in J Am Coll Cardiol. Dr. Januzzi's most frequent co-authors are Hanna Kim Gaggin, MD, MPH, Cian McCarthy, MD and Scott David Solomon, MD.

Dmand AI links Dr. Januzzi to 9 clinical trials. 2 are still active or recruiting. Conditions studied include Arthritis, Rheumatoid, Heart Failure and Heart Diseases. AbbVie sponsors the most, 3. Open Payments lists research payments to Dr. Januzzi that name 7 trials.

CMS Open Payments shows 884 general payments to Dr. Januzzi from 47 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 86% of the total. Boehringer Ingelheim Corporate Center GmbH paid the most, $365,088. It also lists 105 research payments totaling $151,558 from 2016 to 2025, naming 7 clinical trials.

Dr. Januzzi graduated from New York Medical College in 1994.