Career Opportunities

Stephanie D’Onofrio, Assistant Director of ACT Services, began her career at CN Guidance and Counseling Services in 2019 as a Wellness Specialist on the ACT Team. A recent graduate of Hofstra University with a degree in Mental Health Counseling, Stephanie quickly discovered her passion for working with individuals diagnosed with severe and persistent mental illness. Her dedication and early impact were recognized when she was named Employee of the Month in November 2020.

Shortly after joining the agency, the COVID-19 pandemic began. During this time, Stephanie provided dedicated support to her primary caseload in an effort to reduce potential exposure and transmission. As the team transitioned to a hybrid work model, Stephanie took the initiative to design a digital framework that enabled consistent communication and streamlined access to client information-an invaluable tool that helped her team adjust to the new workflow.

In 2022, Stephanie was promoted to ACT Team Leader. In this role, she developed a comprehensive documentation guide that remains a key resource for onboarding new ACT staff across all teams. Stephanie’s commitment to excellence and continuous improvement has extended beyond her team. She contributed to the grant writing process for the Suffolk FACT Team in 2023 and played a key role in revising the comprehensive assessment for CCBHC through her participation in a 2023 committee. In 2024, she also began mentoring her Assistant Team Leader, Caitlyn Bial, in preparation for a management role.

Now, in 2025, Stephanie is stepping into her next chapter as Assistant Director of ACT Services. In partnership with Victoria Guercio, Director of ACT Services, she will be instrumental in launching new ACT teams while continuing to oversee and support existing ones. Her unwavering dedication to high-risk populations and her commitment to innovation make her a vital asset to the agency. For these reasons, Stephanie is our next Rising Star!

Before joining CN Guidance and Counseling Services, Marion earned a B.B.A. in Business Computer Information Systems and Quantitative Methods. After obtaining the degree, Marion worked in the Quality Assurance department for a major software developer. Leveraging this background, Marion decided in 2019 to transition from the Centralized Scheduling department to the HIT department as an EHR Support Assistant. Soon after, with the onset of the COVID-19 pandemic, Marion and a colleague assisted the agency’s IT staff in enabling remote work for their colleagues.

In 2021, Marion was promoted to HIT Implementation Analyst, and in 2022, Marion received the “Behind the Scenes Wonder” award. Marion credits Madison Benish, HIT Project Manager for believing in the potential for success in this role. Shifting from support to implementation has allowed Marion to take a more creative approach to planning and executing system implementations.

Marion believes that successful implementation involves effective communication both within and outside the system. Integrating system components effectively depends not only on technology but also on interactions with people, processes, and organizational culture. Marion is a strong proponent of early resolution of potential integration issues to mitigate future client safety risks.

As an Implementation Analyst, Marion has set up numerous programs in the EHR, created various forms and documents, established a virtual platform, configured communication software, updated the ticketing system, and mapped processes to streamline workflows. However, Marion finds the most satisfaction in supporting the staff on the front lines who are making a difference in the lives of their clients.

For these reasons, Marion is our next Rising Star!

Rashida Castillo, Senior Billing Specialist II joined CN Guidance and Counseling Services October, 2022 as a Senior Billing Specialist, bringing with her valuable experience from Maimonides Medical Center, where Rashida specialized in physician billing. Rashida’s transition marked a new and exciting chapter in her career as she stepped into the role of Senior Billing Specialist within our organization. This move allowed Rashida to leverage her expertise in a setting dedicated to supporting individuals on their journey. Rashida feels immersing herself in such a mission-driven environment has been both meaningful and rewarding. Witnessing the resilience of those we serve and the commitment of our staff has made a lasting impact on her.

Since joining our team, Rashida has consistently demonstrated professionalism, dedication, and a strong work ethic. Rashida’s contributions have not gone unnoticed, leading to her well-earned promotion to Senior Billing Specialist II.

Please join us in congratulating Rashida on her continued growth and this well-deserved recognition as our Rising Star!

Tanya King, Program Manager, HHCM, joined CN Guidance and Counseling Services in 2018 as a substance abuse counselor on the ACT team. This was her first job in New York after relocating from New Jersey, where she had worked in the substance use field for seven years. Tanya quickly found herself experiencing burnout. However, during her time on the ACT team, she learned a great deal about herself and realized that she needed a change. While she had always known she wanted to work in the mental health field, particularly with individuals struggling with substance use, Tanya wasn’t sure exactly what that would look like for her.

In March 2020, Tanya transitioned to the Health Home Care Management (HHCM) team as a Community Engagement Specialist, where her main focus was enrolling clients into services during the COVID-19 pandemic. As hospitals discharged patients quickly to free up beds for COVID-19 patients, Tanya was able to reach out to clients directly after their discharge, hear about their struggles, and help them connect with community resources. Tanya thrived in this role, traveling across Nassau County to share HHCM services with local hospitals, homeless shelters, social services, Nassau County Correctional Facilities, and other facilities, ensuring that clients were linked to care before discharge.

In 2022, Tanya was promoted to Program Supervisor on the Health Home Care Management team, where she supervised the Outreach team and trained all new hires. Tanya built a strong team, which she continues to oversee, and has remained committed to connecting clients with the necessary resources in the community. She has also presented on HHCM services multiple times at the Care Management Agency conference in 2022, 2023, and 2024, with plans to present again in 2025.

In 2024, Tanya took on a leadership role in the Connections to Care grant, funded by OASAS, where she and her team focused on engaging individuals aged 55 and older with substance use issues. As of 2025, Tanya has been promoted to Program Manager, and she continues to take on new responsibilities and expand her expertise. Tanya’s goal is to continue growing within the management team at CN Guidance and Counseling Services, earn her New York State social work license (shout out to IRETA), and continue thriving in this field. Her ultimate mission is to make a meaningful impact on every person in Nassau and Suffolk County who needs assistance, helping ease their struggles in accessing services.

For these reasons, Tanya is our next Rising Star!