Meet our team of highly trained professionals

Behavioral Services


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Erin Duchan, MD, FAAP
Board Certified Pediatrician, Medical Director

Erin provides comprehensive diagnostic evaluations for ASD. She is also responsible for guiding the organization in meeting regulatory requirements and in adhering to HealthCall’s objectives for assuring quality patient care.

Lauren Worrall, Psy.D.
Board Certified Clinical Psychologist

Lauren is a licensed clinical psychologist with a primary focus on neuropsychological and psychological assessment.

Mary Mazara, LMSW
Licensed Master Social Worker

Mary provides comprehensive diagnostic evaluations for ASD as well as practices as a behavioral technician providing ABA therapy.

Nalesia Caruthers, M.S.
Qualified Behavioral Health Professional

Nalesia completed her Bachelor of Psychology at Kent State University. She went on to earn her Master’s of Psychology with a concentration in ABA at Purdue University.

Jennifer Germain, M.Ed., LBA
Board Certified Behavior Analyst

Jennifer has been a member of the HealthCall team since June 2019. She received her Bachelor’s degree in Psychology from Bowling Green State University, and Master’s Degree in Special Education with a concentration in Applied Behavior Analysis from Oakland University.

Tauren Keels, M.Ed., LBA
Board Certified Behavior Analyst

Tauren has worked with individuals on the autism spectrum for nearly 7 years. She has worked with clients in clinical settings, their homes, communities and school settings. She graduated with her Masters of Special Education with a concentration in Applied Behavior Analysis from Oakland University.

Julia Key, M.Ed., LBA
Board Certified Behavior Analyst

Julia has worked as a behavioral therapist and clinical supervisor in several metro Detroit clinics prior to joining the team at HealthCall. She graduated with her Masters of Special Education with a concentration in Applied Behavior Analysis from Oakland University

Alison Kolpasky, M.A., LBA
Board Certified Behavior Analyst

Alison has worked as a behavior therapy supervisor in several different clinical centers prior to joining us at HealthCall.  She graduated with her Masters of Art in Applied Behavior Analysis with an emphasis in Autism Spectrum Disorders from Ball State University.

Yun “Enfys” Lin, M. Ed., LBA
Board Certified Behavior Analyst

Enfys has 6 years of experience working with children with special needs as a BCBA and a supervisor in clinical, home, school, and community settings.

Jessica Osos, MA, LBA
Board Certified Behavior Analyst

Jessica has worked with a wide age range of individuals with autism spectrum disorder (ASD) in clinical, community, home, and school settings for over five years.

Gabriella Tedesco, M.Ed., LBA
Board Certified Behavior Analyst

Gabriella has several years of experience working as a behavioral therapist and a clinical supervisor. She graduated with her Masters in Special Education with a concentration in Applied Behavior Analysis from Oakland University.

Olivia Harris, BCaBA
Board Certified Assistant Behavior Analyst

Olivia completed her Bachelors of Science at Central Michigan University, where she majored in psychology with a focus in applied behavior analysis, after which she went on to obtain her BCaBA certification.

Cheri Topper
Speech Language Pathologist

Cheri conducts comprehensive assessments of language and communication, and she sets personalized goals, focused on initiating spontaneous communication and engaging in reciprocal communication.

Mikayla Treynor, MA, CCC-SLP
Speech Language Pathologist

As a Speech-Language Pathologist, Mikayla provides comprehensive speech and language evaluations, individualized plans of care, and intervention for children at HealthCall.

Kathleen Grassa, MS, OTR/L
Occupational Therapist

Kathleen Grassa is a licensed Occupational Therapist providing comprehensive evaluations and treatment for the pediatric population at Healthcall.

Courtney Vander Werp, MS, OTR/L
Occupational Therapist

Courtney Vander Werp is a licensed Occupational Therapist providing comprehensive evaluations and treatment for the pediatric population at Healthcall.

Community Healthcare and Private Duty Nursing


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Martha Shaver, RN, BS, MPA
Administrator of Clinical Services and Director of Nursing

Martha is responsible for clinical oversight of private duty and skilled home care services. She also leads the clinical team in Leelanau County, MI.

Jeanie Kidd, BSN, RN
Assistant Director of Nursing

Jeanie oversees the delivery of patient care and provides guidance and direction to the clinical team.

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Patricia O’Donohue, BSN, RN, CPN, CCM
Nurse Case Manager

Pat assists in the management of clients’ and families’ needs related to financial, social, and emotional concerns along with assisting clients and families in obtaining equipment and supplies needed.

Diane Danna, RN
Clinical Supervisor

Diane oversees the delivery of patient care and provides guidance and direction to the clinical team.  Prior to joining HealthCall, Diane spent eight years as a nurse in the Detroit Medical Center system, including Medical-Surgical as well as pediatric nursing.

Teresa Haunert, BSN, RN
Clinical Supervisor

Teresa oversees the delivery of patient care and provides guidance and direction to the clinical team.

Tiffany Rickett, BSN, RN
Clinical Supervisor

Tiffany oversees the delivery of patient care and provides guidance and direction to the clinical team. She graduated from Madonna University with a Bachelor of Science in Nursing (BSN).

Organizational Development and Continuing Education


Rockelia Mathies
Director of Human Resources and Education

Rockelia serves as the Director of Human Resources and Education for HealthCall of Detroit with over ten years of experience in Human Resources

Renee Kizy, M.ED
Organizational Development Specialist

Renee attended Oakland University for her undergraduate career where she obtained her Bachelors in Social Work with a focus in Sociology

Nicole Osgood
Health Information Systems Management Supervisor

Nicole serves as the Health Information Management Systems (HIMS) Supervisor and is HealthCall’s subject matter expert in Medicaid and private insurance within both the Private Duty Nursing and ABA benefit.

Shantele Allen
Office Manager & BLS/CPR Instructor
(American Heart Association)

As the Office Manager, Shantele provides administrative support to both Home & Community Services as well as Behavioral Services.

Lauren Badaczewski, RRT
Respiratory Instructor
(American Association of Respiratory Care)

Lauren oversees the Adult and Pediatric Respiratory Assessment and Management course.

Marcus Porter, RN, CBIS
BLS / First Aid Instructor
(American Heart Association)

Marcus oversees the delivery of patient care and provides guidance and direction to the clinical team.

Katie Allen, M.A.
Registered Behavior Technician & Education Specialist

Katie has three years’ experience as a Registered Behavior Technician (RBT) working with children with autism spectrum disorder (ASD).

Leadership


Sandy Szirtes, RPh, CCM, CBIS
Founder & Chairman of the Board

Sandy is responsible for the overall direction of HealthCall as well as the development of organizational plans that align with the company’s mission and values.

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Joel Szirtes, MPH, MHSA
Chief Executive Officer

Joel is responsible for the overall management of several internal departments: Human Resources, Payroll, Information Services, Medical Records, and Marketing and Communications.

Elliot Szirtes
Director of Operations

Elliot plans, organizes, and evaluates operations to ensure the provision of appropriate care and services; he also supervises the payroll and billing processes.

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Sarah Szirtes, JD
General Counsel

Sarah is the principle legal advisor to the company; she is responsible for organizational development as well as policy and procedure development and associated regulatory compliance.

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Leslie Rott, MHA, PhD
Compliance and Experience Officer

Leslie manages the organization’s data, manages and resolves client and employee complaints, oversees the creation and administration of the organization’s feedback surveys, and provides feedback to Administration via the creation and dissemination of quarterly and annual reports.