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Fellow, Clinical Cardiac Electrophysiology, Year 2


Fima Macheret trained in Biochemical Engineering at the University of Southern California, studied clinical and translational research science during medical school at Mayo Clinic, and completed Internal Medicine Residency at New York Hospital - Weill Cornell Medical Center. He has studied proBNP and its role in heart failure and hypertension, adiponectin and its association with atrial fibrillation, and most recently machine learning algorithms to predict survival in heart failure. He was a hospitalist at University of Pennsylvania and UC San Diego while completing board certification in clinical informatics with an emphasis on handoff design and implementation. He chose UW because of its strong clinical training paired with support to pursue a research career. He is happily married to his wife Ali Mendelson, a Palliative Care physician at UW. They have a Tibetan Spaniel named Biscuit. Fima enjoys yoga, spinning with the #UWCardiacSquad on Peloton, travel, photography, food/nutrition, and nature.

Medical School

Mayo Clinic School of Medicine


NYU-Weil Cornell

Recent Publications and Presentations

Macheret F, Bartz TM, Djousse L, Ix JH, Mukamal KJ, Zieman SJ, Siscovick DS, Tracy RP, Heckbert SR, Psaty BM, Kizer JR. Higher circulating adiponectin levels are associated with increased risk of atrial fibrillation in older adults. Heart. 2015 Sep;101(17):1368-74

Adler ED, Voors AA, Klein L, Macheret F, Braun OO, Urey MA, Zhu W, Sama I, Tadel M, Campagnari C, Greenberg B, Yagil A. Improving risk prediction in heart failure using machine learning. Eur J Heart Fail. 2020 Jan;22(1):139-147.

Huang Y, Li W, Macheret F, Gabriel RA, Ohno-Machado L. A tutorial on calibration measurements and calibration models for clinical prediction models. J Am Med Inform Assoc. 2020 Apr 1;27(4):621-633

Chahine Y, Afroze T, Bifulco SF, Macheret F, Abdulsalam N, Boyle PM, Akoum N. Cryoballoon temperature parameters during cryoballoon ablation predict pulmonary vein reconnection and atrial fibrillation recurrence. J Interv Card Electrophysiol. 2022 Nov 24. doi: 10.1007/s10840-022-01429-0. Epub ahead of print. PMID: 36418664.

Chahine Y, Askari-Atapour B, Kwan KT, Anderson CA, Macheret F, Afroze T, Bifulco SF, Cham MD, Ordovas K, Boyle PM, Akoum N. Epicardial adipose tissue is associated with left atrial volume and fibrosis in patients with atrial fibrillation. Front Cardiovasc Med. 2022 Nov 1;9:1045730. doi: 10.3389/fcvm.2022.1045730. PMID: 36386377; PMCID: PMC9664066.


Mailing Address:
University of Washington Medical Center,
1959 NE Pacific Street,
Box 356422,
Seattle, WA 98195-6422

Clinical Contacts:
For appointments or other clinical matters, please contact the Heart Institute.