Rings of Prometheus

This is Prometheus, a Pinus longaeva thought to be the oldest living thing when he was felled 1964.  At nearly 5,000 years old, the rings in Prometheus’ massive trunk tell the story of a bristlecone pine whose life stretched from the end of the bronze age through the beginning of the space age.  Thick rings […]

It’s Time to Believe in Each Other Again

As 2017 draws to a close, authors across the nation will spill their ink recapping the year as one of great polarization.  Today’s vocabulary is replete with extremes, as paid political operatives from the left, right, center and sidelines all declare these to be the worst, most divisive, most challenging times anyone has ever faced. […]

Making a Human Connection

“I’ve never wanted to make nurses feel like they have to convince me to come to a bedside. I’ve always said, ‘If you want me to come look at the baby just say so and I’ll come.’ Ninety percent of the time it is clinically worth the trip. The 10% of the time that everything’s […]

Convenience and Coordination

Thanks to the folks at HealthLeaders Media and reporter Debra Shute for interviewing me for this story. One of the key messages we landed on was this: “…the push toward accountable populations while simultaneously meeting consumers in their living rooms are dual trends that will definitely need to be resolved within the next 10 years.” […]


It’s hard to believe it’s been a year since our family’s longtime friend and canine companion Bartlet passed away. This is a post I wrote at drderienzo.com last year to celebrate his life and share the lessons we learned from a pound puppy with a white shock of fur, an inexplicable fear of water bowls, […]

Tiny Medicine

Don’t give up! I believe in you all. A person’s a person, no matter how small! – Horton, from Horton Hears a Who by Dr. Seuss When I tell people I’m a neonatologist, they usually nod and smile in the way people do when they have absolutely no idea what you’re talking about.  I’ve learned […]

Getting There

Here’s a new Chapter excerpt called Getting There – happy summer everyone! We are standing on the threshold of both heaven and hell, dancing nervously between the gates of one and the ante room of the other. -Yuval Harari, Sapiens The nausea was so overwhelming it nearly sent me to the ground.  I’d spent 31 […]