Meet the Team

*** For Career Opportunities click the link below

Julie Herrick, MSW, LCSW – Executive Director

Ext 301

Julie Herrick, MSW, LCSW and Executive Director of Oceanside Community Services, LLP, graduated in 2003 from the University of Montreal with a Bachelor Degree in Psychology. She worked at Sweetser Children services for five years in various positions such as Youth and Family Counselor, Educational Technician III and Substitute Teacher learning various crisis intervention strategies and Special Educations techniques.

Julie’s interest in Social work and counseling continued to grow and in 2004 she was accepted at the University of New England’s School of Social Work.  After graduating with her Master’s Degree, she obtained a clinical position with Sweetser’s Residential Staff Intensive and In-Home services programs.  Her primary focus was working with adolescent males who had problematic sexualized behaviors, as well as other emotional and behavioral issues. She made therapeutic gains by using cognitive, behavioral and solution focused treatment modalities. Julie also provided clinical services through the 65M program, designed to support children and their family in their home environment and became fluent in Multisystemic Family Therapy [MST].

Julie joined the Support Solution Mental Health Clinic in 2007 as an outpatient Clinician. This transition allowed Julie to continue to provide therapeutic support and counseling to individuals and families, also learning and specializing in working with individuals dually diagnosed with mental health and intellectual disabilities. She continued to train and specialize by working with individuals with sexualized behaviors. Julie has clinical experiences working with trauma victims as well.

Julie is also a Behavioral Health and Children and Youth Services surveyor for CARF – Commission of Accreditation for Rehabilitation Facilities.  CARF focus is on ensuring companies meet the needs for quality services providing to their communities.  She travels throughout the U.S. surveying companies to ensure conformance to the standards while offering consultation for companies who are attempting to complete CARFs accreditation process.  For more information on CARF visit

Julie believes in Social justice and equality. As a Clinical Social Worker, Julie recognizes the need to provide exceptional services through evidenced-based practices to individuals and their family and actively collaborate with other service providers to enhance the quality and the delivery of services.

She and her colleagues are pleased to be serving the local community of Maine and promoting the well-being of the individuals and families served by supporting, integrating and collaborating with children and families.

Jonathan Negoescu, MSW, LCSW – Clinical Director

Ext 302

Oceanside Community Service’s Clinical Director is Jonathan Negoescu, MSW, LCSW.  Jonathan moved to Maine in 2000 after leaving North Carolina with business experience in Medical Practice Administration.  Jonathan continued to function as a Medical Practice Administrator for the Maine Centers for Endocrinology and Diabetes; the Maine Health Care System.

Jonathan’s continued interest in social work directed his focus to apply to, and be accepted by, the University of New England’s School of Social Work.  After graduating with his Master’s Degree, he obtained a supervisory and clinical position with Sweetser’s Residential Staff Intensive programs.  His primary focus was working with adolescent males who had sexually problematic behaviors, as well as those with various behavioral issues.  Then, he moved and set his goals on developing an outpatient mental health clinic for a non-profit agency Support Solutions, Inc.  While there, he continued working with an array of mental health issues and continued his specialty working on addressing sexual issues, developing harm reduction strategies and trauma recovery.  While doing this, he also developed his craft by learning and working with individuals who have Intellectual Disabilities, Aspergers and Autism.

Jonathan then moved from working with established mental health agencies and decided, with his partner, to develop their own agency and named it Oceanside Community Services, LLP.  During the time developing the clinic, Jonathan completed his training and is currently a surveyor for CARF – Commission of Accreditation for Rehabilitation Facilities.  He also travels throughout the U.S. surveying companies to ensure conformance to the standards and offers consultation for companies who are attempting to complete CARFs accreditation process.  To learn more about CARF, please visit their website at

As a Clinical Social Worker, Jonathan Negoescu realizes the importance of communication, collaborative practice and community involvement and hopes his experiences will allow him to serve as a leader in the mental health community.  He and his colleagues are pleased to be serving the local community of Maine and promoting the well-being of the individuals and families served by supporting, integrating and collaborating with children and families.


Rebecca Baker, MSW, LCSW

Ext 304

In 2012, Becca graduated from the Pennsylvania State University, with a Bachelor’s degree in Human Geography.  In the three years that followed, Becca worked in multiple school-based roles, including 2 years of service with AmeriCorps, working with at risk and gang impacted youth in San Diego County, California.  Becca’s work with youth and families led her to following a path in the field of social work.

In 2015, Becca moved from California to Maine to pursue her Master’s Degree in Social Work at the University of New England.  While attending UNE, Becca gained working experiences in various settings. Becca’s first year graduate internship was with Listen Up!, a music-based community day program designed to support adults with intellectual disabilities in meeting personal and therapeutic goals.  Following this internship, Becca became certified as a Direct Support Specialist (DSP), and continued to work in the day program setting at Creative Trails in Portland, supporting individuals in developing daily living skills and autonomy through creative endeavors and community involvement.  Becca’s 2nd year internship was with the Biddeford Public School Department, working as a school based social worker in the alternative high school program, Alternative Pathways Classroom (APC).  It was during this internship that Becca first became connected to Oceanside Community Services, LLP, while co facilitating a student group with Oceanside’s Executive Director, Julie Herrick.    

While attending the University of New England, Becca earned a certificate in Creative Arts and Social Justice.  Becca has an interest and passion for incorporating creative arts in the therapeutic process, and has developed and facilitated ‘Arts & Wellness’ groups in various settings including Listen up!, Biddeford’s Alternative Pathways Classroom, Harpswell Coastal Academy and the Cumberland County Jail.

Following graduation from UNE in 2017, Becca accepted a position as a Day Treatment Clinician with Connections For Kids.  Becca spent one year working in the day treatment setting in Fairfield, Maine, before accepting a position as a full time Clinician with Oceanside in the summer of 2018.  Becca values creative and person centered approaches to therapy, and practices Cognitive Behavior Therapy, Narrative Therapy, Dialectical Behavior Therapy and Interpersonal approaches.

Samuel Roy, LMSW-cc


Ext 303

Samuel is a recent graduate of the University of Maine, and received his Masters Degree in Social Work in May of 2022. He completed my undergraduate education in 2020, receiving bachelors degrees in both Social Work and Psychology. Samuel has extensive training in child and adolescent development, crisis management and de-escalation, conflict resolution, and various styles of individual and group therapies. He love using creative and expressive approaches when working with kids, and he has a particular passion for music and art. In his free time, you might see him playing guitar, ice hockey, snowboarding, or doing martial arts.


Yvonne DeCory, MDMedical Director

Dr. DeCory graduated with her BS in Biology from New Mexico State University and received her Medical Degree from the University of Nebraska College of Medicine. She completed her residency at Maine Medical Center, along with a Fellowship in Pediatric Psychiatry. Dr. DeCory is Board Certified in Psychiatry and is a Diplomat of the American Board of Psychiatry and Neurology.

Dr. DeCory has worked as an Attending Physician in the Emergency Department at MMC.  She has experience working in residential settings at Spurwink and Opportunity Farm for Girls and Boys. She has also worked on MST / HCT / Children’s ACT Teams.

Samuel Kingsley, PMHNP

Sam is a US Army combat veteran of 5 years. He then worked at Sweetser in various direct care and leadership roles before going back to school to become a nurse. Sam attended USM where he graduated with honors and entered the Master’s Option Program for Nurse Practitioners.

While in school he worked as a psych nurse at Spring Harbor Hospital both as a floor nurse and charge nurse. After graduating and getting his license Sam started working for York Hospital Psychiatric Associates as a Nurse Practitioner, where he worked for 14 months before joining our team at OCS.

Sam also have a small private practice in Scarborough. He enjoy working mostly with emerging serious mental illness, those struggling with potential personality disorders, as well as Veteran and Adolescent populations. 

Psychiatry Department Assistant 

Hannah Kimball, ext 306 (In regards to Psychiatric Medication Management Referrals, Schedule Appointments, Requests for Consultations) 



Ashley Besemer, Psy D, Licensed Clinical Neuropsychologist-Neuropsychology Department Head

Ashley Besemer, PsyD graduated from the University of Colorado at Boulder with a Bachelor’s Degree with a major in psychology. She received a Master in Arts degree in Child Development from Tufts University. She completed her doctoral work at William James College where she specialized in neuropsychology. During this time, she trained at Boston Public Schools, Butler Hospital, Edith Nourse Rogers Memorial Veterans Hospital, and Lemuel Shattuck Hospital.  She completed her APA-accredited internship at the University of Texas Health Science Center in Tyler, Texas. After graduating with her Doctorate in Psychology, she completed her post-doctoral training in neuropsychology at Oceanside Community Services. 

Dr. Besemer is the head of the Neuropsychology Department. She specializes in evaluating individuals across the lifespan. Her areas of expertise are numerous and include trauma, DHHS involvement, intellectual disabilities, dementia, traumatic brain injury, learning disabilities, personality disorders, attachment disorders, Autism, and mental health disruptions. She excels at evaluating individuals with complex presentations.


Leah Baer, Psy D, Licensed Clinical Neuropsychologist

Dr. Baer pursued her undergraduate studies at Middlebury College in Vermont, where she graduated with a bachelor’s degree in Psychology in 1999.  After working in the research field for a few years following her graduation, she started her doctoral work in Clinical Psychology at Baylor University in Texas.  As a part of her doctoral education, she gained hands-on experience in psychotherapy through practicum placements in various settings including a community mental health center, a college counseling center, and an elementary school.  She also gained experience in psychological assessment through the doctoral program’s evaluation and assessment clinic.  She was particularly drawn to the assessment realm in the field of psychology and, upon completion of her doctoral degree and pre-doctoral internship at the White River Junction Veterans Affairs Medical Center in 2006, Dr. Baer accepted a postdoctoral training position at Psychodiagnostic Services of Southern Maine, a small private practice that specialized in conducting psychological evaluations for children and adults.  She remained on staff at Psychodiagnostic Services of Southern Maine (acquired by LifeStance Health in 2020) as a clinical psychologist conducting psychological evaluations for children, adolescents, and adults for 15 years.  She joined the team at Oceanside Community Services in September of 2021, excited to continue providing psychological assessment services in a small multidisciplinary private practice setting. 


Cassie Trask- Psychometrician


Paige Twitchell- Psychometrician


Neuropsychological Dept. Assistants

Brian Herrick, Administrative Assistant (scheduling, report request, intake process)


Sophie Joel, Referral Specialist (Referral and case coordination)


Jack White- BHP/Office Coordinator


Jack White joined Oceanside Community Services as Office Coordinator in 2012. He has 15 years of experience working in the mental health field previously serving at Sweetser Children Services. Jack’s responsibilities at Oceanside are varied. As Office Coordinator, he is responsible for keeping client records up to date, audits and reviews, ordering supplies and ensuring the ongoing ease in flow for all office administration functioning. We are fortunate to have Jack working with our team!

Billing, Collections & Insurance


Ext 312 In regards to Billing & Collections

Ext 313 In regards to Insurance verification