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Who We Are

Walnut Street Center is able to offer the services it does thanks to all of our amazing employees!

Each is an important part of the organization and works tirelessly year after year. The relatively small Senior Management team has a combined 100+ years of experience in the human services field, and have all worked to improve and build upon Walnut Street Center’s programs and offerings during their time with the organization. With the ability to have a completely hands-on and personalized approach (due to having a small team), they each bring their passion, as well as their skill, to the management of Walnut Street Center.

Chief Executive Officer

Chief Executive Officer

Carolyne Guffey

guffeyc@wscinc.org
617.629.3562

Carolyne came to Walnut Street Center in November 2011 as The Director of Human Resources and was promoted to Chief Operating Officer in 2013. She has 30 + years of experience in the human service field. Carolyne’s previous experience includes direct care positions, human resources, and operational management. Carolyne brings a unique combination of operational and management expertise to Walnut Street Center’s leadership team. Ms. Guffey holds an Associate Degree in Nursing from Bunker Hill Community College, a Bachelor of Arts degree with a focus in management and organizational psychology from Cambridge College, and a Master of Business Administration from Norwich University. She began her current role as CEO of Walnut Street Center at the beginning of 2017 and was key in the move to the new Medford location.

Chief Financial Officer

Chief Financial Officer

Juan Gomez

gomezj@wscinc.org
617.629.3557

Juan began his association with Walnut Street Center in May 1999 as the Chief Financial Officer. Juan has over 16 years of experience in human services and has a comprehensive understanding of finances as they relate to the field. Juan is an intricate part of the Walnut Street Center leadership team who strives daily to realize the agency’s mission.

Director of Operations

Director of Operations

Eva Osagiede

osagiedee@wscinc.org
617.629.3589

Eva began her association with Walnut Street Center in December 2012 as the Assistant Director of Residential Services. Eva has over 13 years of experience in the human service field with a strong focus on residential services and individual support. Eva was promoted to the Director of Residential Services in August 2014 after demonstrating a proven ability to provide leadership to a multidisciplinary staff team and the highest quality services at all times.

Eva was promoted to Director of Operations in November 2018. She now oversees the day-to-day operations of Residential Services, Day Program Services, and Individual Supports.

 

Director of Day Services

Director of Day Services

Sara O’Brien

obriens@wscinc.org
617.629.5105

Sara began her journey with Walnut Street Center as a Residential Program Coordinator in December 2014. In May of 2016, she transitioned to Day Services in the capacity of Community Based Day Supports Coordinator before taking on the role of Director of Day Services in April 2019. With over 10 years of experience in the human service field, Sara’s compassion and focus on person-centered programming bring a great sense of community for those served by Walnut Street Center.

Director of Residential Services

Director of Residential Services

Binta Gbuijie

gbuijieb@wscinc.org
617.629.3430

Binta is one of the newest members of the senior management team at Walnut Street center and began her journey in March 2024, as the Director of Residential Services. Binta has over 10 years’ experience in the human services field with a strong focus on residential, group home and volunteer services administration. Binta’s passion for individualized approach to supporting individuals and staff appreciation, fosters a positive environment and a strong sense of belonging at walnut street center.

Director of Facilities

Director of Facilities

Melvin Goncalves

goncalvesm@wscinc.org
617.629.5147

Melvin joined Walnut Street Center in 2016 as the Property Accountant and transitioned to the Facilities Department in 2021. He now oversees all 17 Residential Programs as well as our main building at 291 Mystic Ave managing projects and improving operational efficiency.

Melvin has an unyielding desire to achieve a high standard of work in everything he does and strives to make a positive impact in the lives of the clients we serve.

 

 

Director of Quality Assurance and Training

Director of Quality Assurance and Training

Coleen Levasseur

levasseurC@wscinc.org
617.629.3486

Coleen joined Walnut Street Center in 2015, bringing with her decades of
experience working in Human Services primarily in residential administrative settings.

In 2022, she made the transition from Director of Residential Services to QA & Training Specialist and has now rejoined the senior team as the Director of Quality Assurance & Training.

Coleen works alongside two QA & Training specialists. The Team’s main objectives are maintaining compliance, consistency, and continuous improvement as well as assessing, identifying and managing the company’s training needs. Coleen also acts as the agency Compliance Officer.

 

 

Director of Human Resources

Director of Human Resources

Danielle Surette

surettted@wscinc.org
617.629.3415 EXT 415

Danielle began her journey with Walnut Street Center in 2023, bringing with her fifteen years of experience in Human Resources and Training. She has a unique professional perspective, having worked in both Human Services and for-profit settings paired with her education in employment law. Danielle is passionate about organizational development, advocacy for inclusive workplaces, and employee well-being. She is proud to contribute to WSC’s mission by serving our talented team of human services professionals.

 

 

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