Current Residents

Hala Halawi, PharmD
PGY2 Critical Care Pharmacy Resident

Email: hhalawi@houstonmethodist.org


Hala was born and raised in Lebanon. She earned her Doctor of Pharmacy degree from the Lebanese American University in June 2020 and completed her PGY1 at Houston Methodist Hospital. Her current practice interests include cardiology, mechanical circulatory support, and antimicrobial stewardship. In her spare time, she enjoys cooking, reading, and travelling. 


Major research project: Bleeding Outcomes in Critically Ill Patients Receiving Intravenous Unfractionated Heparin with Discordant anti-Xa and PTT Values
Quality improvement project: Use of Lidocaine for Ventricular Arrhythmias 
Continuing education program: Controversies in VV-ECMO Management 

Mariah Isabella Sigala, PharmD 

PGY2 Critical Care Pharmacy Resident

Email: misigala@houstonmethodist.org


Mariah is originally from Las Vegas, Nevada but spent her college years in Austin, Texas. She earned her Bachelor of Science and Arts in Biochemistry and Doctor of Pharmacy degree from the University of Texas at Austin and completed her PGY1 Pharmacy Residency at Houston Methodist Hospital in 2022. Her current practice interests include mechanical circulatory support, cardiology, and nutrition support. In her spare time, she enjoys trying new restaurants, traveling, and cycling. 

Major research project: Evaluation of Direct Oral Anticoagulant Anti-Factor Xa Monitoring versus Standard Monitoring Upon Intensive Care Unit Admission
Quality improvement project: Agents for Refactory Vasoplegia and Post-Cardiotomy Shock 
Continuing education program: Pulmonary Arterial Hypertension Emergencies and Management