Meet the Business Team

Dr. Jason Duncan is the founder and Clinical Director of CBT Collective. He started the practice in 2016 as a sole practitioner and has grown it into a group practice of over 25 clinicians, built on an unwavering commitment to high quality, evidence-based care.

Dr. Duncan specializes and is certified in Cognitive Behavioral Therapy and mindfulness-based interventions, working with children, adolescents, adults, and couples. He received advanced training at The Beck Institute and the American Institute for Cognitive Therapy, and conducts a range of psychological assessments including neuropsychological functioning, ADHD, and learning disability evaluations.

Outside of his clinical work, Dr. Duncan hosts Sanity Podcast, where he interviews mental health experts on empirically supported therapies and assessments. He serves on the board of NYC-CBT and is an active member of ABCT, the largest national CBT organization, where he has contributed to committees on dissemination, sponsorship, and their annual conventions.

Beth has been part of the CBT Collective story since July 2023, when she joined as an Operations Advisor before stepping into her role as Chief Operating Officer in February 2025. She has played a central role in shaping the practice — leading operations hiring, sourcing vendors, streamlining processes, and identifying the tools and systems that keep CBT Collective running at its best.

Beth earned her bachelor's degree in sociology from Columbia University and her MBA from Northwestern University's Kellogg School of Management. She brings extensive experience leading operational teams at well-known organizations including Google, Uber, Airbnb, and Hilton. As the 11th hire at Calibrate — one of the first companies to virtually prescribe GLP-1 medications alongside intensive lifestyle interventions for weight loss — she helped build the company from the ground up, leading client-facing support, clinical operations processes for physicians, and insurance-interfacing teams. Immediately before joining CBT Collective as COO, she served as Director of Business Operations at Food52, partnering with senior leadership to drive critical business objectives. Beth's breadth of experience across healthcare and operations gives her a deep understanding of the unique demands of a practice like CBT Collective.

Anna graduated from Indiana University with a bachelor's degree in psychology and an MBA in finance. After graduate school, she worked in private equity for several years, gaining deep exposure to finance, operations, and the inner workings of successful small businesses. Her firm specialized in helping small, family-owned companies grow while preserving their close-knit culture. She went on to support insurance operations at health tech startups, eventually leading the operations department at a company founded to bring the full spectrum of perinatal care under the US insurance umbrella.

Mental health care has always been a passion of Anna's — she worked in a CBT and Implementation Science research lab throughout college and has since completed her master's degree in social work. At CBT Collective, Anna oversees strategic initiatives, coordinates operations, and works closely with team members across all areas of the business to ensure seamless execution and alignment with the practice's goals.

Nastassja "Nas" Tejada is the Head of Growth at CBT Collective, bringing over a decade of experience leading sales strategy, client acquisition, and cross-functional initiatives at high-growth organizations including Better Mortgage and OnDeck. She has overseen teams of over 100, scaled operations across international markets, and built systems that drive sustained revenue growth. Her background spans building sales teams, launching new market segments, managing strategic partnerships, and developing streamlined processes that improve access and performance across departments.

At CBT Collective, Nas is focused on strengthening the systems that help clients find the right therapist, supporting clinicians in keeping their caseloads full, and expanding awareness of our practice and brand across our core service areas. She also plays a key role in launching new service offerings and building sustainable growth strategies that stay true to our clinical mission. Nas was drawn to CBT Collective by its commitment to expanding access to high-quality mental health care, and is passionate about helping the practice grow in a way that makes it easier for clients to access care and for clinicians to do their best work.

Sarah earned her bachelor's degree from Samford University in journalism and mass communication. Before joining CBT Collective, Sarah spent several years in the behavioral healthcare space, with a background in technology implementation and customer success in the startup world. She has helped implement behavioral health services in hospitals and clinics nationwide, and in her previous role with Peregrine Health, she partnered with C-level executives to implement tailored behavioral health solutions, streamline client onboarding processes, and optimize operational workflows.

Since joining CBT Collective, Sarah has brought that same blend of technical proficiency, consultative approach, and relationship-building expertise to help power our operations and growth. She is passionate about improving healthcare delivery through innovative solutions and is committed to building the systems and processes that allow our clinicians to focus entirely on delivering exceptional client care.

Shefalee is CBT Collective's Development Manager, focused on keeping clinician caseloads full and ensuring strong client-clinician fit as our practice continues to grow. She brings nearly a decade of experience across client acquisition, business development, and client relations — including several years in fertility care, where she managed a donor egg bank at Pinnacle Fertility and Santa Monica Fertility, helping patients navigate one of the most personal journeys of their lives. That work, which included guiding sensitive conversations and building compassionate, solutions-oriented client experiences, sparked her deep passion for making healthcare feel more human. She also holds a bachelor's degree in sociology from UCLA, where she graduated with High Honors and received the Woman of Distinction award.

Outside of her healthcare background, Shefalee has held business development and sales roles across consumer and pet product companies, bringing a well-rounded commercial toolkit to her work at CBT Collective.

Stephany is an Account Executive at CBT Collective, focused on keeping clinician caseloads full and ensuring strong client-clinician fit as our practice continues to grow. She brings over 11 years of client engagement, account management, and acquisition experience, having built her career at companies including HubSpot, AppFolio, and Ministry Brands. Across those roles, Steph earned recognition as a top performer — including President's Club honors at AppFolio and a top 5 ramping rep distinction at HubSpot — and developed a consultative, relationship-first approach to everything she does. She holds a bachelor's degree in economics with a business focus from Michigan State University.

Stephany is deeply mission-driven and passionate about the transformative power of therapy, which makes her work at CBT Collective especially meaningful to her.

Aary is CBT Collective's Administrative Operations Associate, serving as a key behind-the-scenes support system for both our clinicians and clients. She handles client support inquiries — with a particular focus on insurance and reimbursement — manages outstanding balances and intake paperwork, and provides the back-of-house operational support that keeps our practice running smoothly.

Aary brings experience supporting clinical teams across a range of healthcare specialties, including cardiology, OBGYN, and physical therapy, and in recent years has found her professional home in the behavioral health space, specializing in support for mental health clinicians and their clients. She was drawn to CBT Collective's commitment to delivering the highest quality, evidence-based care, and brings both the experience and the enthusiasm to continue enhancing the experience for everyone in our community.