Cassandra E. Mullen, MD
Portland, OR 97220
The Oregon Clinic-Pulmonary Critical Care & Sleep Medicine East
1111 Northeast 99th Avenue, Suite 200, Portland, OR 97220
About Cassandra E. Mullen
Dr. Cassandra Mullen knows that sleeping is one of the often-underappreciated pillars of health. By sleeping well, we can delay and prevent diseases from developing while also feeling better in the moment. She finds it very satisfying to help patients feel better and live longer. Dr. Mullen loves working with patients over the course of years, seeing their symptoms improve and hearing about how treatment has impacted their quality of life. Dr. Mullen completed her training in sleep medicine at Yale, learning alongside leading experts in the field. She joins each appointment with curiosity and empathy and takes an individualized approach to patient treatment since no two people are the same.
Yale-New Haven Hospital
2025
Oregon Health & Science University School of Medicine
2019
Georgetown University
2018
Oregon Health and Sciences Hospital:
2021
Oregon Health Sciences University Internal Medicine Dept
2022
Member, American Academy of Sleep Medicine
Member, American College of Physicians
- Transitional Care for Patients with Congenital Heart Disease
- Sleep and athletic performance
- Paroxysmal atrial fibrillation history is associated with earlier recurrence after first cardioversion compared with primary persistent atrial fibrillation
- Turning the World Upside Down: Reversal-of-Vision Metamorphopsia in a Patient with Syncope
- History of Paroxysmal Atrial Fibrillation is Associated with earlier Recurrence after initial Cardioversion Compared to New-Onset Persistent Atrial Fibrillation
1111 Northeast 99th Avenue, Suite 200
Portland, OR 97220
Providence Milwaukie Hospital
Providence Newberg Medical Center
Providence Portland Medical Center
Providence St. Vincent Medical Center
Providence Willamette Falls Medical Center
When not working, Dr. Mullen can be found playing soccer or basketball, hiking, biking, kiteboarding in Hood River, reading a book with her cats, and spending time with loved ones. She loves how bikeable the area is, how much nature surrounds us, and the amazing food in the region.