Leading virtual care for the full spectrum of digestive health

Cylinder 2025 Summit 1
Backed by clinical evidence.
Proven to improve outcomes, reduce ER visits, and deliver up to 5:1 ROI.

Digestive conditions affect 40% of adults and are among the most underdiagnosed and undertreated issues in health care, despite being a top driver of ER visits, absenteeism, and medical costs.

Cylinder is the leading virtual digestive health platform delivering personalized, evidence-based care across all acuity levels—from IBS and chronic constipation to IBD, GERD, and more. Our coordinated care model pairs GI doctors, registered dietitians, and health coaches to provide members with the right care at the right time—driving real health outcomes and real savings.

Leadership

Terry Boch, CEO of Cylinder Health
Chief Executive Officer

Terry Boch

About Terry

Terry Boch is Chief Executive Officer of Cylinder Health and a 30+ year healthcare industry veteran with deep experience building and scaling high-growth healthcare technology companies. Her work spans payer, provider, and employer markets, with expertise across care management, population health, value-based care, and data-driven healthcare innovation.

Prior to Cylinder, Terry served as CEO of BeMe Health, where she led the company through a successful sale, and CEO of Clarify Health. She has also held senior leadership roles at Diameter Health (acquired by Availity), IBM Watson Health, Wellcentive (acquired by Philips), and UnitedHealthcare, leading initiatives across growth strategy, product innovation, and operational scale. Terry currently serves on the board of Cylinder and Frontier Psychiatry and previously served on the boards of Clarify Health and the American College of Chest Physicians.

Smarts

  • University of Rhode Island

Why Cylinder?
My daughter was diagnosed with Crohn’s disease at 14 and spent years managing surgeries and hospitalizations before finding her footing. She’s thriving now, an active mom of two, but that experience never leaves you. When I saw what Cylinder was building and the foundation the team had already laid, I knew this was where I wanted to bring everything I’ve learned over 30 years. The opportunity is real, the mission matters, and the timing felt right.

Claim to fame
My relentless focus on family and strong belief that it is the foundation to a fulfilling life. It’s the gift my parents gave me and my life mission is to pay it forward to my kids and generations to come. My husband, Michael, and I are proud parents of two daughters, a son, and three grandchildren.

cylinder team hau liu
Chief Medical Officer

Hau Liu, MD, MBA, MPH

About Hau
Dr. Liu has over 20 years of health care experience, including leadership roles in clinical medicine, digital health, chronic condition management, and health care operations. Before joining Cylinder, he was Senior Vice President of Clinical Strategy at Teladoc Health, Chief Medical Officer at the Shanghai hospitals of United Family Healthcare, and Director of the Chronic Care Management Division at Santa Clara Valley Medical Center. Dr. Liu is a practicing physician on the NYU Grossman School of Medicine faculty. He previously served on the faculty at Stanford University School of Medicine and as a fellow at the Center for Primary Care and Outcomes Research.

Smarts

  • AB, Harvard College
  • MD, MBA, MPH, Columbia University
  • MS, Stanford University
  • Residency and Fellowship, Stanford Medicine

Why Cylinder?
I’m excited to advance the field in an incredibly important and often stigmatized area of health care. I appreciate Cylinder’s mission-driven, member-centric focus. Gastrointestinal disorders also affect my family, and I see the need and opportunity to transform the way that digestive care is delivered.

Claim to fame
I’m passionate about two Rs: Running and Reading. For running, nothing beats a good run through Central Park or along the Bund. For reading, I recommend anything by Adam Grant (Give and Take) or Tim Keller (Every Good Endeavor).

Katharine Moore, Cylinder Chief of Staff
Chief of Staff &
SVP of People

Katharine Moore

About Katharine
Katharine manages people operations, culture initiatives, and projects that drive the business forward. She has over 15 years of sales, account management, and startup experience, including two years as Director of Business Development at Zocdoc.

Smarts

  • University of Michigan

Why Cylinder?
Everyone engages with the health care industry, and there is much room for improvement in the patient experience. Cylinder has an incredible opportunity to drive awareness and effectively support digestive health issues. The timing is right, as people realize how important and connected digestive health is to overall health and quality of life.

Claim to fame
I have traveled to over 40 countries and try to visit at least one new country every year, though I love returning to Japan.

Ryan Sloan, Cylinder Chief Commercial Officer
Chief Commercial Officer

Ryan Sloan

About Ryan:

Ryan oversees all commercial responsibilities including sales, health plan sales, sales operations, and commercial partnerships. He has over 20 years of experience in health care, specializing in sales, marketing, and business development within the digital health and payer-provider sectors. He joined Cylinder after serving as CGO at Galileo, and previously as CCO of both Onduo (part of Alphabet) and Vitality. Ryan spent the first 12 years of his career at Aetna, in a variety of roles including SVP of National Distribution for Aetna’s Value-Based Care Programs.

Smarts

  • Northwestern University – Kellogg School of Management (M.B.A.)
  • The University of Georgia (B.A. Economics)

Why Cylinder?
Ryan continues to be amazed at the real-life impact of Cylinder, and the return on investment for partners. He joined Cylinder to help the company drive its mission forward in destigmatizing chronic gastrointestinal (GI) issues and advancing digestive care for millions of Americans.

Claim to Fame: 

Ryan, his wife Jenny, and his three children share a love of travel and experiencing new cultures (and foods!). A little known fact is that Ryan is a citizen of three countries – Canada, U.K., and the U.S.

cylinder team karen luk
Chief Product Officer

Karen Luk

About Karen:
With over 20 years of product management experience, Karen has focused on health care products and services for nearly a decade. Before joining Cylinder, her work focused on mental health, driving the member experience as Vice President of Product at AbleTo. Karen has held product leadership roles across several health tech companies focused on electronic health records, patient engagement, care management software, and COVID-19 response in public health.

Smarts

  • University of Waterloo, Ontario

Why Cylinder?
Building products and services that meaningfully impact people’s lives excites me, and that’s what we do at Cylinder. Digestive health has personally affected my family, which makes the mission and the opportunity to make a difference even more important to me.

Claim to fame
I’ve climbed Mt. Kilimanjaro.

Manoj Poonia, Cylinder Chief Technology Officer
Chief Technology Officer

Manoj Poonia

About Manoj
Manoj Poonia is Chief Technology Officer at Cylinder Health, where he leads the company’s technology strategy, platform development, and engineering organization. He brings a unique blend of deep technical expertise and commercial acumen, with experience spanning enterprise technology, digital health, and product development.
Manoj has held leadership roles at IBM, Abbott and Somatus, where he built and scaled teams and platforms that support complex, high-growth environments.

Smarts

  • Electrical Engineering, NIT, India
  • MBA, INSEAD, France and Singapore

Why Cylinder?
I started running to manage persistent digestive issues, and over time training for marathons became a way to push through discomfort and take ownership of my health. When I learned about Cylinder, it immediately resonated. The mission mirrors what I learned on the road: that digestive health is deeply personal, often invisible, and worth fighting for. Professionally, it’s also the right challenge at the right time, a chance to build something that can genuinely improve people’s lives.

Claim to fame
I play the mandolin in an upbeat bluegrass band. I’ve also spent almost 15 years in volunteer search and rescue in Oregon’s Mt. Hood wilderness area.

Achint Prabhat, Cylinder SVP of Finance
SVP Finance

Achint Prabhat

About Achint:
Achint Prabhat is SVP of Finance at Cylinder Health, where he leads financial strategy and planning. He brings over 15 years of experience across venture-backed healthcare and technology companies, with a track record of raising capital, building and scaling finance functions, and supporting high-growth organizations through key inflection points.

Smarts

  • CFA Charterholder and Master’s in Finance from the University of Illinois, Urbana-Champaign (Go Illini!)

Why Cylinder?
I love the mission-driven approach to addressing a major health issue that is often stigmatized and hidden. The opportunity to work together with a tremendous team makes the experience even more rewarding.

Claim to fame
My family – my wife Angel and four beautiful children, Aanya, Kai, Remi, and Bodi – is my backbone, happy place, and proudest achievement.

cylinder team chris nordman
SVP Commercial

Chris Nordman

About Chris:
Chris leads commercial sales at Cylinder, bringing deep experience in digital health go-to-market, having previously served as SVP of Employer Sales at Galileo and in commercial sales leadership at Omada Health, with advisory roles at Flo Health and SWORD Health. Chris lives in the East Bay of California with his wife Natasa, daughters Mila and Sienna, and their GSP Birdie. When he’s not working, you’ll find him running, coaching his daughters’ basketball and softball teams, or building something in the backyard.

Smarts

  • University of California, Davis

Why Cylinder?
Chris saw firsthand that digestive health was a critical gap in the digital health space, one that employers were increasingly recognizing but hadn’t fully solved. Cylinder’s proven outcomes for both members and employers, combined with the chance to make a genuine difference in how companies build their benefits programs, made joining an easy decision.

Claim to fame

Advisors at the forefront of GI health and care

Our advisors include leading voices in GI care, clinical research, and health care innovation. These experts help guide our protocols, validate our model, and ensure we continue to meet the highest clinical and operational standards.

Clinical Advisory Board

Leaders in GI, gut–brain health, microbiome science, and population care.Cylinder’s clinical advisory board brings together internationally recognized experts in gastroenterology, gut–brain disorders, microbiome research, cancer prevention, and population health. Our advisors include physician–scientists, health services researchers, and innovators who have shaped national guidelines, advanced breakthrough diagnostics and therapies, and led major clinical, academic, and digital health programs.

Working closely with Cylinder’s clinical leadership, they provide evidence-based guidance on care pathways, clinical protocols, safety standards, and emerging research to ensure our model delivers high-quality, scalable outcomes for diverse populations.

Chin Hur, MD, MPH

Dr. Hur is the Herbert and Florence Irving Professor of Medicine and Epidemiology and the Director of Healthcare Innovations and Research at Columbia University Medical Center. He is a nationally recognized expert in cancer screening and the prevention of gastrointestinal cancers and a leader within the National Cancer Institute consortium of researchers working to improve cancer management.

His research focuses on esophageal, gastric, and pancreatic disease and the use of data analytics and advanced machine learning to develop clinical prediction rules.

Smarts

  • MD, The Johns Hopkins University School of Medicine
  • MPH, The Johns Hopkins School of Public Health

Dena M. Bravata, MD, MS

Dr. Bravata is a health care entrepreneur, executive, and nationally recognized health services researcher. She is the co-founder of Lyra Health and a founding member of the Aspen Institute Healthcare Strategy Group.

Previously, Dr. Bravata was the founding Chief Medical Officer and Head of Products at Castlight Health. She was also a practicing internist for 16 years and an attending physician at Stanford University and the Palo Alto VA. In 2021, Dr. Bravata received a national service award from the White House and CDC for her work on the pandemic response and Vaccines.gov.

Smarts

  • MS, Stanford University
  • Residency, Stanford University
  • MD, Columbia University
  • University of Oxford
  • Yale University

Grace Niu, Ph.D

Dr. Niu is a clinical psychologist with deep expertise in neurogastroenterology and psychogastroenterology, areas focused on the complex connection between brain function and digestive symptoms. As Head of Gut-Brain Health, she will lead strategic initiatives to embed evidence-based psychological care across Cylinder’s digital platform and care pathways.

Hamed Khalili, MD

Dr. Khalili is an esteemed gastroenterologist and Director of Clinical Research at Massachusetts General Hospital, Crohn’s and Colitis Center. He is an Associate Professor at Harvard Medical School. His research focuses on studying dietary and lifestyle factors and their relationship to the development and progression of inflammatory bowel diseases.

Dr. Khalili has published over 150 peer-reviewed original papers and has received funding from the National Institute of Health, the Crohn’s and Colitis Foundation, the American Gastroenterological Association, and the American College of Gastroenterology.

Smarts

  • Fellowship, Massachusetts General Hospital
  • MPH, Harvard T.H. Chan School of Public Health
  • MD, UT Southwestern Medical Center

Joel Brill, MD

Dr. Brill is an executive clinician with over 30 years of experience providing strategic leadership and medical oversight to data-driven health organizations, skilled in strategy, development, and implementation of innovative value-driven health programs, products, and payment systems, with extensive experience in clinical practice, research, coverage, reimbursement, quality improvement, observational registries, and bundled and episode payments.

Board Certified in Internal Medicine and Gastroenterology, Dr. Brill has run risk-bearing Independent Practice Associations and Physician-Hospital Organizations in California and Arizona. He has held management positions and serves on Scientific / Editorial Advisory Boards / Committees for several managed care companies and journals. He has authored over 150 CPT code applications, participates in the CPT Editorial Panel and the RBRVS Update Committee, and co-chaired the Part D medication measures Technical Expert Panel for CMS.

Dr. Brill is the lead physician for the American Gastroenterological Association (AGA) Bundled Payment Project, an author of several guidelines / quality measures in Gastroenterology and Preventive Services, and the co-founder of the AGA Center for GI Innovation and Technology.

Smarts

  • AB, Biology, University of California, Los Angeles
  • PhD, Rosalind Franklin University of Medicine and Science, Chicago Medical School
  • Internship & Residency, Internal Medicine, UCLA – San Fernando Valley Program
  • Fellowship, Gastroenterology, Los Angeles County – USC Medical Center
  • Management Program for Health Care Organizations, UCLA School of Public Health

Mark Pimentel, MD

Dr. Pimentel is a leading expert in developing diagnostic and therapeutic programs for small intestinal bacterial overgrowth (SIBO), Irritable Bowel Syndrome (IBS), and other diseases linked to the microbiome.

Dr. Pimentel is an Associate Professor of Medicine and Gastroenterology, and Executive Director of the Medically Associated Science and Technology (MAST) program at Cedars-Sinai. He is credited for developing the first blood test for IBS, discovering rifaximin for the treatment of IBS-D, identifying the auto-immune basis for IBS/SIBO, and developing the first multi-gas breath test for SIBO.

Smarts

  • MD, University of Manitoba
  • Internship, University of Manitoba
  • Residency and Fellowship, University of Manitoba

Ujjwal Ramtekkar, M.D., M.B.A.

Dr. Ramtekkar, a double board-certified psychiatrist and nationally recognized leader in integrated behavioral health, brings extensive experience designing and scaling psychiatric programs in both health systems and digital health settings. He will advise on clinical integration strategies that elevate member outcomes and employer value.

Uri Ladabaum, MD, MS

Dr. Ladabaum is a Professor of Medicine in Gastroenterology and Hepatology, and the Director of the Gastrointestinal Cancer Prevention Program at Stanford University Medical Center.

Dr. Ladabaum is a nationally recognized expert in colorectal cancer screening, including evaluation of the economic impact and cost-effectiveness of screening strategies. His research program spans a range of methods and approaches, including epidemiological studies, observational and interventional clinical studies, decision analyses, and systematic reviews.

Smarts

  • Fellowship, University of Michigan
  • Residency, Stanford University Hospital
  • A.B., University of California, Berkeley
  • M.D., University of California, San Francisco
  • M.S., University of Michigan

Commercial Advisory Board

Leaders in health plan strategy and benefits design.
Cylinder’s commercial advisory board includes distinguished health care and technology leaders. Working with the Cylinder leadership team, our advisors provide expert knowledge and guidance on market conditions, sales best practices, and marketing strategies.

Jason Parrott

Jason has over 25 years of enterprise health and welfare experience with leading employers, including Vida Health, AT&T, and Boeing. He served as Board Chair for the Midwest Business Group on Health in Chicago and works with the Employer Health Innovation Round Table. Jason supports Cylinder with his knowledge of the GI and digestive health marketplace.

Smarts

  • Benedictine University
  • Illinois State University

Joe Toniolo

Joe is a human resources professional with over 20 years of leadership experience in all aspects of benefits. Currently serving as US Foods’ Senior Director of Health & Welfare Plans, he is responsible for the company’s benefits strategy, plans, programs, and activities. Before US Foods, he led benefits at Sears Holding Company.

Smarts

  • Dominican University
  • Northern Illinois University

Jonathan Fox

Jonathan is Managing Director for the Marwood Group, a leading advisory and research company in health care services. He is also the Managing Director of US Imaging, a Marwood subsidiary and member engagement concierge program for advanced imaging. In addition, he is a strategic advisor to health care management teams, where his experience equips him with a broad view of the market, including health care benefits. His relationships with health care thought leaders across corporate, labor, municipal, health plan, third-party administrator, and benefits consultants provide great insight into the health care market.

Smarts

  • The University of North Carolina at Chapel Hill

Board of Directors

Health care and technology executives with deep industry insight.
Our accomplished board of directors includes notable health care and technology leaders. Working with the Cylinder leadership team, they help the company scale to meet the growing need for gut health and digestive disease solutions among employees, employers, and health plans, with a focus on reducing costs and improving outcomes for all.

Ben Davis

Ben is a Director at Mercato Partners, where he draws on more than 20 years in the C-suite of private equity–backed and publicly traded companies, giving him a practical perspective on how boards and senior leadership teams work together to drive growth, maximize enterprise and shareholder value, and navigate difficult inflection points. His experience includes capital formation, strategic acquisitions, public and private market transactions, and scaling businesses through multiple stages of growth, with a consistent focus on revenue architecture, enterprise sales execution, and turning strategy into repeatable commercial outcomes. He sits on the board of directors at Cylinder and Paytient in the healthcare space, and is an advisory board member at Fullcast—an AI-native RevOps & GTM platform.

Most recently, Ben served as President and Chief Revenue Officer of Lendio, a Mercato portfolio company, where he helped grow the business from $8 million to $125 million in annual revenue by aligning every revenue-driving channel—enterprise sales, franchise, direct, and partnerships—into a single, efficient commercial engine and leading operations and execution across multiple business units. Earlier in his career, Ben held senior operating roles across private equity–backed, multi-concept franchise platforms, where he designed distribution models and go-to-market systems matched to each stage of scale.

Smarts

  • Brigham Young University

Rachel Pacheco, PhD

Rachel is a former Chief People Officer, advisor, author, and current faculty member at the Wharton School of Business, where she teaches global strategy and organizational behavior. Her work includes ongoing research on management, specifically about power and culture. Rachel’s first book, Bringing Up the Boss: Practical Lessons for New Managers, provides practical tools for new managers in start-up organizations.

Over the past decade, Rachel has served on health care and big data startup executive teams. As an advisor on organizational design, team dynamics, talent strategies, and building a healthy culture, she has supported numerous digital health care startups, including Maven Clinic, Wellthy, Cityblock Health, and Included Health. Rachel was a founding faculty member of the Entrepreneurship in Education Program at the University of Pennsylvania.

Smarts

  • PhD, MBA, Wharton School of Business, University of Pennsylvania
  • Georgetown University

Robert Garber

Robert is a Partner at 7wireVentures, focused on investments in digital health companies that empower consumers to be better stewards of their health in today’s changing health ecosystem. He is a board member of Cylinder, RecoveryOne, SameSky Health, and HomeThrive. He is also Chairman of the Board of Directors at HealthBeacon and a board advisor for HealthXL.

Robert has over 30 years of experience investing in, advising, and operating early-stage health care and tech companies. He has co-managed four venture funds with $400M+ AUM. Before joining 7wireVentures, Robert led health care and technology investments as Managing Director at Stratus Ventures and KB Partners.

Smarts

  • Kellogg Graduate School of Management, Northwestern University
  • University of Pennsylvania

Sally Welborn

With over 30 years of experience in payer and employer solutions, Sally advises health care organizations and entrepreneurs in health care and employee benefits. Most recently, she served as Senior Vice President of Global Benefits at Walmart Stores, Inc. Before that, she was Senior Vice President of Corporate Benefits for Wells Fargo & Co. She is a member of the board of directors for Cylinder, Truveris, Inc., and the Leapfrog Group. She is also a Board Advisor at the Penn Center for Health Incentives and Behavioral Economics.

Smarts

  • The University of Texas at Arlington

Terry Boch

Terry Boch is Chief Executive Officer of Cylinder Health and a 30+ year healthcare industry veteran with deep experience building and scaling high-growth healthcare technology companies. Her work spans payer, provider, and employer markets, with expertise across care management, population health, value-based care, and data-driven healthcare innovation.

Prior to Cylinder, Terry served as CEO of BeMe Health, where she led the company through a successful sale, and CEO of Clarify Health. She has also held senior leadership roles at Diameter Health (acquired by Availity), IBM Watson Health, Wellcentive (acquired by Philips), and UnitedHealthcare, leading initiatives across growth strategy, product innovation, and operational scale. Terry currently serves on the board of Cylinder and Frontier Psychiatry and previously served on the boards of Clarify Health and the American College of Chest Physicians.

Smarts

  • University of Rhode Island

Research and publications

Cylinder’s clinical approach is validated by peer-reviewed research. Explore leading publications from our staff and Clinical Advisory Board members.

Cylinder in the news

April 2, 2026 in Press release

Cylinder Health launches Stool Scan to innovate and standardize one of GI care’s most subjective signals

Clinically validated image recognition removes patient guesswork, captures multivariate stool data, and supports earlier, more precise assessment of GI patterns. CHICAGO, IL — April 2, 2026 — Cylinder Health, the…
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March 19, 2026 in News

Terry Boch Named CEO of Cylinder Health

Health care technology executive brings more than three decades of leadership experience and a personal connection to digestive health.Chicago, IL — March 19, 2026 — Cylinder Health has appointed Terry…
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March 4, 2026 in News, Press release

Independent Peterson Health Technology Institute evaluation validates impact of Cylinder Health’s digestive care model

Peer-reviewed studies show reductions in medical costs, symptom burden, and workplace absenteeismChicago, IL — March 4, 2026 — The Peterson Health Technology Institute (PHTI) has released an independent evaluation of…
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We’re always looking for people who share our passion for bringing better digestive health to the world.

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