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Our Team


Jim Carroll

Chief Executive Officer

Jim comes to The diaTribe Foundation after seven years as the Vice President of Finance and Administration at Common Sense Media and 6 years as the Managing Director of Equality California where he led the team to successfully pass over 70 pieces of legislation to achieve legal equality for LGBT Californians. He also worked at an environmental health organization called The Breast Cancer Fund and at the National office of Parents, Families and Friends of Lesbians and Gays. Jim graduated from the University of Florida and lives with his husband, Scott, and their two yellow Labrador Retrievers in San Francisco. 


Michael Howerton

Editorial Director

Michael Howerton joined The diaTribe Foundation in 2021. He is the former Editor in Chief of the San Francisco Examiner and was founding Editor in Chief of Granite Media, a digital media company in San Francisco. He also served as Chief of Staff to San Francisco Board of Supervisors President London Breed, now mayor of San Francisco, overseeing her public policy and legislative agenda. 

Michael has worked at the Wall Street Journal, The Daily, Forbes and many other publications, and has won writing awards from the California Newspapers Publishers Association, the New York Society of Professional Journalists’ Deadline Club, the Connecticut Society of Professional Journalists and the New England Associated Press Newspaper Association. He led the San Francisco Examiner to its first statewide CNPA General Excellence award in 2015. He is a graduate of UCLA, the Columbia Graduate School of Journalism and the San Francisco State University Graduate Program in English Composition. 

An essay about his reporting on the 9/11 attacks in New York was published in "At Ground Zero: 25 Stories from Young Reporters Who Were There.” Michael has taught writing at UC Berkeley, the College of New Jersey, and Berkeley City College. He is also a fiction writer and has published stories in Salamander Magazine, Griffel, In Parentheses Magazine, and Yemassee Journal.


Julie Heverly

Senior Director, Time in Range Coalition

Julie is thrilled to bring her combined 12+ years of leadership at the American Diabetes Association and 23 years of patient experience to The diaTribe Foundation. Julie was diagnosed with type 1 diabetes after her junior year at Washington & Jefferson College. After graduation, she provided public affairs and PR counsel to clients like the Eisenhower Presidential Museum, The National Center for Victims of Crime and Americans for Alaska.  She eventually earned a position at Burson Marsteller, where she consulted a Fortune 500 company on government and community affairs.  In 2006, Julie accepted her first staff position with the American Diabetes Association as Market Director in Richmond, VA. She oversaw some of the country’s most successful ADA campaigns during her tenure in Philadelphia, as Director of Development and as Executive Director in Western PA and Eastern Ohio.  Julie and her husband, Steve, reside outside Pittsburgh, PA with their eight year old daughter, Vivian.


Tom Cirillo

Deputy Director

Tom has been Deputy Director at The diaTribe Foundation since March 2020.  Prior to that, he served as a special advisor to The diaTribe Foundation, including attending Aspen Ideas Health 2019 as part of the diaTribe team.

Tom brings to over 25 years of experience in the non-profit sector, with 15 years in senior leadership roles including executive director/CEO (Portland Baroque Orchestra) and chief advancement officer (Portland Japanese Garden). At the center of Tom’s passions and abilities is his commitment to bringing talented minds together to achieve outcomes that are greater than the sum of their parts. Through authentic communication he endeavors to learn the core values and gifts of thought leaders and experts in their fields and then bring these individuals together to lead effective and creative action.

With a long record of success in the arts and culture sector, Tom is excited to move into the public health arena and devote his entire energy to solve the diabetes epidemic and improve the lives of people with diabetes.

A Phi Beta Kappa graduate of Amherst College, where he met Kelly Close over 30 years ago, Tom did graduate work at the Free University of Berlin and completed the executive leadership fellowship at the John F. Kennedy Center for the Performing Arts.


Diane Scherer

Development Director

Diane is very passionate about bridging generous corporate social responsibility funds and individual philanthropists with meaningful causes that make our world inspiring, healthy, and equitable.  She brings her combined 15+ years of non-profit grant-making and fundraising experience and 37 years as a person with Type 1 Diabetes to The diaTribe Foundation. She received a BSBA from the Warrington School of Business at University of Florida.  After two years working in a bank, she had a "career epiphany" and wanted to pivot to non-profit work.  She then pursued a Masters in Social Work at Wurzweiler School of Social work and has had roles that include- a $5 million grant portfolio on the issues of mental health and special needs in the NY Jewish community; and annual, capital, and planned giving fundraising roles where she has solicited millions of dollars for social causes.  Through all of her previous roles in New York and Florida, she has learned to assess social needs, make grant/program allocation decisions, and work with donors on fulfilling these goals through personal cultivation and large-scale galas/events.  Diane is a runner (she completed 2 half-marathons and fundraised for diabetes organizations to keep her motivated) and she enjoys her Peloton bike. She also really enjoys learning about all cultures through travel and photography. She has never known a life without Type 1 diabetes and is on a quest to get a perfect CGM line after her favorite food- sushi (very hard to carb count!). She lives in Florida with her husband and 3 children.  


Alex Cameron

Senior Manager of Individual Giving, The diaTribe Foundation

Alex joined The diaTribe Foundation in October 2023. She is a passionate fundraiser who enjoys meeting new people and building long lasting relationships, ensuring a fulfilling donor journey. Her role at diaTribe focuses on ensuring current individual donors are cultivated and stewarded in meaningful ways, while also growing our donor base, therefore growing our revenue. Her goal is to build meaningful relationships with our donors, keeping them up to date with our work and bringing them closer to the charity. Originally from the UK, Alex brings eight years of fundraising experience at Cancer Research UK, the world's largest independent cancer research charity. She now lives in San Francisco with her husband, two children and their energetic rescue dog. In her free time, she enjoys skiing, camping, hiking and listening to podcasts.


Anna Brooks

Managing Editor

Anna Brooks joined The diaTribe Foundation in 2023. She has been a journalist for over a decade and holds a master’s degree in journalism with a specialization in health and science. Originally from Calgary, Anna has worked as a multimedia journalist in Canada, Thailand, and Kenya. Based in New York City, Anna has written and produced award-winning features about health, science, and the environment for the Guardian, Popular Science, Everyday Health, Vice, the New York Post, and more. When she’s not working, Anna is usually hanging out with her rescue dogs Sully and Spooky.


Susanna Chen

Managing Editor

Prior to joining The diaTribe Foundation in 2023, Susannah Chen was a longtime freelance writer and editorial content strategist with a focus on food, drink, and travel. A two-year saga involving gestational diabetes, pancreatitis, a type 2 diabetes misdiagnosis, and a type 1 diabetes diagnosis led to her latest passion: diabetes education and advocacy. She is particularly interested in reducing diabetes stigma, empowering those with diabetes who have been recently diagnosed, and addressing the social, emotional, and psychological barriers associated with all types of diabetes.


April Hopcroft

Staff Writer
April Hopcroft joined diaTribe in 2023 as a Staff Writer after co-leading the Diabetes Therapy team at Close Concerns. She graduated from Smith College in 2021, where she majored in Neuroscience and Spanish. At Smith, she researched approaches to treating postpartum depression among physicians in Buenos Aires, as well as the effects of the COVID-19 pandemic on childcare providers and universities throughout Ohio. April co-founded Smith’s casual running club and was a four-year member of the University of Massachusetts synchronized skating team. In her free time, she can often be found running, biking, or hiking; she also enjoys trying new vegetarian recipes and listening to podcasts. 


Eritrea Mussa Khan

Social Media Manager

Eritrea Mussa Khan joined diaTribe in February 2022. As a type one diabetic for 20 years, Eritrea has worked in the Diabetes Space as an advocate for most of her adult life. Because of her background, Eritrea has lived in other parts of the world and experienced how different having diabetes can be due to where you live or how much money you have. She has always carried a strong love of travel and culture. Both of her parents are immigrants to America and a big part of her life has been spent traveling to visit family around the world. In her free time, Eritrea co-hosts DiabeticsDoingThings, a podcast that focuses on telling the amazing stories of people living with Diabetes. Eritrea enjoys reading, napping and above all laughing as much as possible. She resides in Dallas, Texas with her 3 pups.


Franklin Medina

SEO Manager


Audree Hall

Digital Campaign Manager, Time in Range Coalition 

Audree joined the diaTribe Foundation in 2022 as the Time in Range Coalition’s Digital Campaign Manager. She has lived with Type 1 diabetes for 15 years and is a former Digital Director at Do Big Things, a full-service digital firm. There, she helped strategize, build, and implement digital campaigns across a multitude of advocacy, political, and commercial clients that include award-winning digital advertisement and community engagement campaigns, social media management, email programs for over half a million subscribers, video production, website development, and more. Prior to working in digital, she worked in Congress within the communications departments, bringing a unique perspective on advocacy and digital to the team. 

As a former camper, counselor, and Med Staff at diabetes camp, and a patient advocate at many different levels, she has seen how diabetes can affect people of any age and is fiercely passionate about helping people living with diabetes find the tools and education they need to live the best lives possible. She spends her time hiking, eating good food, watching the Houston Astros win, and trying her best to stay in range! She resides in Durham, NC with her cat, Sophie and her partner, Jackson.  


Rachel Allen

Development Manager

Rachel Allen joined The diaTribe Foundation in 2022 as the organization's Development Manager. Rachel's previous experience includes corporate fundraising in the nonprofit sector, where she initiated and cultivated relationships with corporate donors. She graduated Magna Cum Laude from Tufts University with a B.A. in International Relations and Economics. In her free time, Rachel enjoys reading, attending spin class and traveling (when it's safe to do so).


Matthew Garza

Stigma Program Manager

Matthew Garza joined the diaTribe Foundation in 2020 after graduating with honors from Johns Hopkins University’s Whiting School of Engineering where he majored in Biomedical Engineering and minored in the Study of Women, Gender, and Sexuality. As an undergraduate Matthew was heavily involved in research, working in the Hopkins Translational Tissue Engineering Center. His research focused primarily on stem cells, three-dimensional matrix scaffolds, and surgical outcomes for transgender patients. He has a passion for understanding more about the socioeconomic determinants of health and how they affect patient outcomes, primarily for the LGBTQ population. Matthew swam for the Hopkins varsity swim team and was the president of the Student Athlete Advisory Committee and Hopkins’s Athlete Ally chapter. He enjoys swimming, running, hiking, and backpacking in his free time and he will never turn down the opportunity to eat good food or listen to good music.


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