Meet the Firefly Health Team

The current system frustrates patients and doctors alike. We saw so much opportunity to make it better through teamwork and technology.

Jeff Greenberg, MD, MBA

Primary Care Physician / Founder & COO
Jeff was founding medical director of the Innovation Hub at the Brigham and Women's Hospital (BWH) where he held several leadership positions. He was formerly a consultant with McKinsey and Co. He holds an MD from the University of Pennsylvania and an MBA from the Wharton School. He also teaches at HMS and is a practicing primary care physician.

Andy Ellner, MD, MSc

Primary Care Physician / Founder & CEO
Andy was the founding co-director of the Harvard Medical School (HMS) Center for Primary Care and founding director of the HMS Program in Global Primary Care and Social Change. He holds an MD from HMS and an MSc from the London School of Economics. He also teaches at HMS and is a practicing primary care physician.
Getting healthcare should be as easy as texting a nurse or doctor who's in your family.

Nisha Basu, MD, MPH

Primary Care Physician / Medical Director

Martin Camacho

Engineering Director

Carolyn Chandler, NP

Nurse Practitioner

Justin Dangel

Founder, Strategy & Acquisition

Jane Erb, MD

Mental Health Integration

Kevin Gask

UX Strategy & Design

Mary McGee

Health Guide

Shirley Mills, MBA, CFA

Finance Director

Jacob Mulligan

Product Manager

Kirstie Olofsson, LICSW

Social Worker

Torrie Power

People Operations

Fay Rotenberg Bush


Fabiana Saad, NP

Nurse Practitioner

Siomara Vasquez

Practice Coordinator

Franklin Yang

Product Manager
Technical Advisors

Marcy Carty, MD


Former VP, Network Performance

Len D’Avolio


Founder and CEO

Steve Lindseth



Vinay Seth Mohta


Technical Co-Founder

Jim Roosevelt

Tufts Health Plan

Former CEO

Lesley Solomon, MBA

Dana Farber Cancer Institute

Chief Innovation Officer

National Advisory Board

Johnathan Bush


Founder & Former CEO

David Cutler, PhD

Harvard University

Professor of Economics

Cynthia Fisher


Founder & Former CEO

Jeffrey Flier

Harvard Medical School

Dean Emeritus

William Frist, MD

U.S. Senate

Former Majority Leader

Soheyla Gharib, MD

Harvard University Health Services

Chief Medical Officer

Sachin Jain



David Moen

MoenMD Consulting


Interested in a career at Firefly?

We are building a team of leading healthcare professionals, entrepreneurs, software engineers, designers, and data scientists united in the goal of making the best healthcare accessible to the most people.

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