Meet Rebecca Shafir

This month for our meet our staff, we are featuring Rebecca. Rebecca Shafir M.A.CCC is a speech/language pathologist with a specific interest in cognitive health and executive function coaching for college students, adult professionals and entrepreneurs with ADHD or ADT (Attention Deficit Traits).

With over 30 years of experience, Rebecca also provides communication and leadership coaching to businesses and organizations. She coaches clients and teams worldwide online.

Rebecca has served as Chief of the Communications Disorders Department at Choate-Symmes Health Services, Chief of Speech/Language Pathology at the Lahey Clinic Medical Center, and as an executive function coach at the Hallowell Center since 2003.

Meet Jen


This month for our meet our staff, we are featuring Jen Zobel Bieber. Jen is a certified personal coach whose specialty is helping adults with ADHD achieve significant personal and professional goals.

Jen has a keen ability to listen, synthesize, and help individuals move from contemplation into action. She brings to her work an understanding of the neuroscience of ADHD and its practical applications. Her clients come away with tools for time management, organization, decision-making, and simplifying. They report feeling more centered and confident as they capitalize on their strengths, manage their challenges, and exceed their own expectations.

Jen received her undergraduate degree in psychology from Columbia University, where she graduated as valedictorian of her college class. She received her coaching certification from NYU.  Earlier in her career, Jen worked in the film and television industry in news, documentary, and entertainment production for NY1, PBS, ABC, NBC, and HBO.  Jen’s work as a personal coach has been featured in The New York Times, The Financial Times, Time Out New York, Forbes, and on The Today Show.

Meet Matt

This month for our Meet Our Staff feature, we are featuring Matt Buttigieg.

Matt is an ANCC Board Certified Psychiatric-Mental Health Nurse Practitioner. Matt offers psychiatric evaluation and medication management for adult patients at the Hallowell Center. Matt creates a safe, supportive, and non-judgmental environment for every client, and understands the importance of empathy, trust, and kindness. He focuses on the whole person to foster a successful therapeutic experience. He believes that a personalized treatment plan can help each of his clients reach their goals and make positive changes.


Matt has clinical experience working at inpatient behavioral health units, most recently at Columbia Medical Center. Having worked closely with diverse and complex individuals, he has an in-depth knowledge around the treatment for many mental health conditions including: Attention Deficit Disorders, Mood Disorders, and Anxiety Disorders.  He also has experience and a passion for working with the LGBTQ community.

Matt is currently completing his Doctorate of Nurse Practice at Wilkes University. Master’s degree as an advanced practice psychiatric mental health nurse practitioner from New York University Rory Meyers College of Nursing. Currently an adjunct faculty member at New York University’s College of Nursing. Undergraduate degrees in both nursing and psychology from the University of Michigan and Michigan State University.