Marc Arenas, MD

Physician • Author of It's All My Fault

About Dr. Marc Arenas

We grew up in house calls. With over 10 years of caring for geriatric patients, Marc Arenas, MD is a passionate advocate of high-quality care for everyone. It's too often that those who have the most difficulty interacting with the healthcare system are asked to do the most. We strive to make medical care more accessible and just plain easier.

His book, It’s All My Fault, is not a medical text and offers no clinical advice. Instead, it’s a tongue-in-cheek exploration of radical accountability — a mindset Dr. Arenas has found deeply useful in business, relationships, and everyday life. Blending humor with practical insight, the book invites readers to see ownership as both liberating and empowering..

Headshot of Dr. Marc Arenas

It's All My Fault

Radical accountability as a practical, compassionate strategy for growth. The book shows how taking ownership—without shame—creates agency in business, relationships, health, and community. You’ll find tools to move from blame to action, scripts for hard conversations, and simple rituals for consistent follow‑through.

Biography

Born and raised in San Juan, Puerto Rico, Dr. Arenas attended Columbia University, obtaining a degree in Neuroscience and Behavior. He graduated from Universidad Central del Caribe with a Medical Degree and completed his Family Medicine residency and Geriatrics fellowship training at Mercy Health St. Mary’s in Grand Rapids, Michigan. There he was able to obtain strong mentorship from renowned specialists in aging, home-based medical care, treatment of complex illnesses, and dementia.

Dr. Arenas has spent over a decade providing care to geriatric patients and promoting accessible, compassionate healthcare. His philosophy is simple: make care easier for those who need it most, blending modern technology with the timeless practice of home-based medicine.

Contact

For media, speaking, or book club requests:

author@marcarenas.com