After more than five years of planning and preparing, our medical staff is beyond excited to begin training and mentoring the next generation of physicians. Below are just a few of the physicians dedicated to training and mentoring our residents. Click a physician’s name on the left-hand menu to learn more about our program’s exceptional leadership team dedicated to your learning and, ultimately, your success.

Our Leadership Team

Kevin S. Fleming, M.D. – Internal Medicine

I was introduced to healthcare at a young age, having come from a family of physicians. I found Internal Medicine to be intellectually stimulating and enjoyed the idea of taking care of a patient from the start to the finish of any medical issue they may be experiencing.

My Biography

Michael J. DeLong, M.D. – Nephrology

Dr. Michael DeLong is a Nephrology Specialist in Tucson, AZ with 23 years of experience in the medical field. Dr. DeLong is experienced in hypertension, general nephrology and chronic kidney disease.

My Biography

Renae L. Trapp, C-TAGME

I am originally from the Detroit Metropolitan area, where I was the owner and directress of a Montessori infant and toddler childcare for more than a decade. I also had a ceramic studio for quite some time and in fact my undergraduate degree is in Fine Art, from the University of Michigan.

My Biography

Ashini P. Shah, M.D. – Internal Medicine & Geriatrics

Dr. Ashini Shah is a geriatrician in Tucson, Arizona and is affiliated with multiple hospitals in the area, including Northwest Medical Center-Tucson. She received her medical degree from N.H.L Municipal Medical College and has been in practice for more than 32 years.

My Biography

Landon Casaus, D.O. – Internal Medicine

Landon Casaus, DO is an Internal Medicine physician and Site Lead at Oro Valley Hospital. Dr. Casaus’ patients find his to be a great communicator who takes time to explain his diagnosis and treatment plan.

My Biography

Elias S. Kakish, M.D. – Pulmonary & Critical Care

I’ve had a passion to help people since I was a child – and I love the satisfaction that comes with diagnosing and treating the variety of lung and sleep disorders that detract from so many people’s quality of life. It’s important to me to invest time in explaining things to each patient. When I review lung images with someone, or show them the results of their sleep study, they can see what the problem is with their own eyes. This builds their confidence and trust in me as we work together on a treatment plan.

My Biography

Hoang M. Thai, M.D. – Cardiology

Dr. Thai specializes in complex interventional cases such as patients with impaired heart function and those suffering from cardiogenic shock. He also performs high risk cardiac interventions such as reopening chronic total occlusion (CTO), left main interventions and in those patients who have been turned down for bypass surgery due to increased risks. He is interested in many new technologies emerging for cardiac care that allow physicians to better care for their patients.

My Biography

Our Teaching Faculty

Donald Brooks, M.D. – Hematology & Oncology
Subspecialty Education Coordinator

Jason Thurman, M.D. – Emergency Medicine
Designated Institutional Official, Quality Education

Laurie A. Bergstrom, M.D. – Rheumotology
Subspecialty Education Coordinator

Lyndsey Kramp, M.D. – Family Medicine
Family Medicine Residency Program Director

Michelle Dodman, D.O. – Gastroenterology
Subspecialty Education Coordinator

Michelle K Williams, M.D. – Emergency Medicine
Emergency Medicine Residency Program Director

Muhammed Sethi, M.D. – Endocrinology
Subspecialty Education Coordinator

Sarah Sullivan, D.O. – Neurology
Neurology Lead

Shannon Thorn, M.D. – Infections Disease
Subspecialty Education Coordinator

©2023 Northwest Healthcare Internal Medicine Residency