Executive Team
Our leadership team brings decades of experience in behavioral health, healthcare operations, and finance—uniting to expand access, elevate quality, and deliver measurable outcomes.
Chief Executive Officer
Anthony DeSena
Anthony drives the vision, culture, and national growth of PAX Health, leading partnerships with payers and employers to ensure accountability at scale.
Chief Operating Officer
Manuel Guantez, Psy.D.
Dr. Guantez oversees multi-state operations and clinical integration, ensuring consistent patient experience and outcomes-driven care delivery.
Senior VP, FP&A
Trevor Tune
Trevor leads financial planning and analytics, bringing deep healthcare finance experience to support strategic decision-making and sustainable growth.
VP, Patient Access and Revenue Cycle Management
Stephanie Lynch
Stephanie leads revenue cycle operations, drawing on deep expertise to drive financial performance, expand access to care, and enhance the patient journey.
VP, Growth
Jonathan Posten
Jonathan oversees market expansion and strategic partnerships, connecting new regions and organizations to the PAX network of care.
Chief of Staff
Lauren Ferguson
Lauren supports cross-departmental coordination and strategic initiatives, ensuring operations aligned with our mission as we scale.
VP, Clinical Operations
Jessica Shea-Brown, LCSW
Jessica leads clinical operations and program development, blending clinical expertise and operational strategy to scale sustainable, high-quality behavioral health services.
VP, People & Culture
Samantha Fini-Torres, SHRM‑CP
Samantha oversees People & Culture, aligning talent strategy and workplace initiatives to build an inclusive, high-performing organization.
Clinical Leadership
JB
Jeffrey A. Berman, M.D.
Chief Medical Officer
DT
Diamanto Tsakanikas, PhD.
Chief of Neuropsychology
JA
Jaqueline Anderson, DNP
Director of Psychiatric Services
PW
Patricia Wallace, LCSW
Dir. Therapy Services & Compliance
MD
Michelle Dean, Psy.D.
Dir. Psych for Injured Workers (NY)
NT
Nick Tolchin, PhD.
Dir. Psych for Injured Workers (NJ)
MH
Michael P. Heptig, Psy.D.
Clin. Dir. Neuropsychology (NJ)
ST
Sutee Techaratanaprasert, PhD.
NY Regional Clinical Director
ES
Elina Spektor, PhD.
Clinical Director – NY
TM
Tarryn Moor, Psy.D.
Clinical Director – NY
Administrative & Advisory
SL
Stephanie Lynch
Director of Administrative Services
SF
Samantha Fini
Director of People & Culture
JB
Jamie Brown, LMSW
Director of Operations
MK
Mary Anne Kezmarsky, PhD
Clinical Strategy Advisor
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