CEO & Founder at Dr. B

Cyrus Massoumi

Dr. B was founded by Cyrus Massoumi, an entrepreneur and investor with over a decade of experience in healthtech. Cyrus is the founder and former CEO of ZocDoc and a Senior Advisor to Columbia University’s Mailman School of Public Health. He graduated with a degree in finance from the Wharton School, then went on to complete an MBA from Columbia Business School.

Go to Dr. B blog

Latest posts by Cyrus Massoumi

A closeup photograph of a group of people standing together with their arms pointing inward, creating a circle, their hands overlapping.

Feb 22, 2024

Dr. B's response to the Change Healthcare cyberattack

A Black woman wearing an orange coat sits on a park bench with autumn trees behind her and smiles as she looks down into her phone.

Nov 22, 2023

Bringing the personal connection back to public health

Image of Dr. B CEO, Cyrus Massoumi, smiling in a blue shirt

Jun 6, 2022

Letter from the CEO: Dr. B in 2022

Jun 30, 2021

What’s in a name? The story behind Dr. B