The Board of Directors

The Board of Directors consists of appointees who have been carefully selected based on their

experience, medical specialty, and diversity. The Board meets monthly to review important issues and guide HAVEN’s growth and sustainability.



Thomas Calnon, DDS—President

Stephen Carrabba, BS—Vice President

Janet Kozakiewicz, MS, PharmD, FASHP—Treasurer

Linda Evanko, MS—Secretary



Stephanie McGuire, MS, APRN, NP-BC

Danielle Morgan, MSN, ANP, CNS, APRN-BC

Elizabeth Roessler, PA-C

Roy Sasenaraine, MBA

Judy Thompson, CRNA, APRN, DNAP


The Oversight Committee

The Oversight Committee consists of three members selected by the Department of Public Health, one member selected the Department of Mental Health and Addiction Services and three members selected by HAVEN. All members must have experience in mental health and/or substance use disorders. The Oversight Committee is an essential element of the enabling statute and meets four times per year.



Diana Congdon, APRN

Alfred Herzog, MD

Ismene Petrakis, MD

James Siemianowski, LCSW

Rajesh Tampi, MD

Albert Young, LADC

The Medical Review Committee


The Medical Review Committees are multidisciplinary bodies reflecting the multiple professions HAVEN serves. The second Wednesday evening of each month a medical review committee convenes to determine eligibility, terms and conditions for participation, status, compliance, and fitness to practice. The committee members will review readiness to assume responsibilities of narcotic access within scope of practice duties, grant approval for HAVEN to support reinstatement of DCP/DEA privileges, or revise contract terms. The Medical Review Committee may also find after careful review that HAVEN’s services are not required.

Reports and other records are deidentified, so committee members cannot identify the individuals seeking HAVEN’s support. The terms and conditions determined by the medical review committee become the health accountability contract entered into between the participant and HAVEN. If a professional disagrees with the Medical Review Committee determination, the professional may request that the Medical Review Committee reconsider. The professional may request review by the Oversight Committee. The Oversight Committee cannot override a Medical Review Committee decision, but the Medical Review Committee may reconsider a determination at the suggestion of the Oversight Committee. The professional may also elect to explore his or her option to work directly with the Department.

If there is a past or pending disciplinary action, felony conviction, or allegation of patient harm, the Medical Review Committee makes recommendations to the Department of Public Health and the Department will determine whether the professional is eligible to work with HAVEN.

The Medical Review Committee Members

Due to the sensitive and difficult decisions the medical review committee members must resolve, the identities of the Medical Review Committee members are kept confidential. 

Our sincere appreciation is extended to the dedicated members who donate their time to help their colleagues face challenges with dignity and respect. 

HAVEN Office Staff


Mariella LaRosa, JD  | Chief Executive Officer


Mariella LaRosa, J.D. serves as the Executive Vice President and Chief Executive Officer. Mariella joined HAVEN in 2021. Mariella is a health law attorney, with over 25 years of experience in the representation of health care facilities and individual providers in litigation and regulatory matters. Before becoming an attorney, Mariella was a Physician Assistant who practiced inpatient medicine as part of a 12-member physician assistant team at St. Francis Hospital in Hartford. Mariella brings a depth of knowledge and experience in both the legal and medical arenas, which experience includes successful representation of non-profit organizations and non-profit board service.  

Douglas Olson, MD  | Medical Director


Douglas Olson, MD, serves as Medical Director. Dr. Olson joined HAVEN in 2021. Dr. Olson brings a strong collaborative approach to HAVEN’s team of clinicians and a passion for our mission of supporting the health, well-being and effectiveness of licensed health care providers in Connecticut. Dr. Olson is an experienced clinician and health care administrator, having served, most recently, as the Chief Medical Officer for the Center for Medicare and Medicaid Services’ Medicaid and Children’s Health Insurance Program. Dr. Olson has also devoted much of his career to Connecticut’s community health centers, including a position as Vice President for Clinical  Affairs at Fair Haven Community Health Center, where he had overall responsibility for quality, clinical  operations, and integration. Dr. Olson attended medical school at George Washington University School of Medicine, and obtained his residency training at Yale University. He is board certified in both internal medicine and addiction medicine. He is a fellow of the American College of Physicians and the American  Society of Addiction Medicine. As Medical Director, Dr. Olson is responsible for the direction and  quality of the monitoring and care coordination services provided by HAVEN to its participants.  

Sara Paredes, APRN, PMHNP-BC | Associate Program Director


Sara Paredes, PMHNP-BC, serves as Associate Program Director. She is a Board-Certified Family Psychiatric Mental Health Nurse Practitioner. Sara joined HAVEN in 2019. She conducts interventions, oversee support services, and follows ongoing compliance with wellness programs for HAVEN participants. She is a graduate of Yale School of Nursing with a Master of Science in Nursing. Prior to her role at HAVEN, she worked as a Psychiatric Mental Health Nurse Practitioner and provided medical evaluation and outpatient mental health treatment for adults with substance use disorders. 

Vincent McClain, MD | Medical Review Officer

Vincent McClain, M.D. serves as HAVEN’s Medical Review Officer. Dr. McClain is a physician who has achieved the national certification required to act as Medical Review Officer. He is also certified by the American Board of Addition Medicine and the American Board of Obstetrics and Gynecology. He generously volunteers his time weekly to review urine drug screen results in order to verify positive results and prepares medical review reports for review.

Lisa Ford, LADC, LPC, MAC | Professional Director

Lisa Ford, LADC, LPC, MAC serves as Professional Director. Lisa joined HAVEN in 2021. She oversees support services and follows ongoing compliance with wellness programs for HAVEN.

Mary Coppola | Vice President of Operations

Mary Coppola serves as the Vice President of Operations. She has over thirty years of experience in business management. Mary joined HAVEN in 2014. She works closely with the Chief Executive Officer and Board of Directors to manage daily operations. She also schedules and oversees the educational presentations that occur throughout the year. She has a Bachelor of Science degree in German Education from the University of Connecticut. You can contact Mary or Lauren to schedule an educational presentation. 

Kami Parisella | Director of Case Flow

Kami Parisella serves as Director of Case Flow. Kami joined HAVEN in 2018. She manages a caseload of participants to ensure they are maintaining compliance with their health and wellness contracts. Kami has an Associate Degree in Liberal Arts and Science and a Certificate in Human Services from Monroe Community College. She also holds a Paralegal Certificate. 

Lauren Howard | Participant Service Coordinator & Outreach Coordinator

Lauren Howard serves as Participant Service Coordinator and Outreach Coordinator. Lauren joined HAVEN in 2017. She manages a caseload of participants to ensure they are maintaining compliance with their health and wellness contracts. In addition, she assists with the planning of our annual conference and other outreach activities. She is a graduate of the University of Connecticut with a Bachelor of Arts degree in Speech, Language and Hearing Sciences. You can contact Lauren or Mary to schedule an educational presentation. 

Matthew Colin Participant Service Coordinator

Matthew Colin serves as Participant Service Coordinator. Matthew joined HAVEN in 2019. He manages a caseload of participants to ensure they are maintaining compliance with their health and wellness contracts. He is a graduate of Providence College with a Bachelor of Arts degree in Global Studies. He has also extensively studied Mandarin Chinese at Brown University and Shanghai University in the Peoples Republic of China.

Nicholas Valerio Participant Service Coordinator

Nicholas Valerio serves as Participant Service Coordinator. Nicholas joined HAVEN in 2021. He manages a caseload of participants to ensure they are maintaining compliance with their health and wellness contracts. He is a graduate of Central Connecticut State University with a Bachelor of Arts degree in Strategic Communication and a Minor in Marketing.

Administrative Staff

Sandy Adametz


Prior HAVEN Staff

Maureen Dinnan, JD | Former Chief Executive Officer


Maureen Sullivan Dinnan, J.D. served as the Executive Vice President and Chief Executive Officer.  Maureen was a healthcare law attorney with extensive experience with professional health issues having represented physicians, dentists, veterinarians and hospitals before DPH and the respective Boards and Commissions. She drafted and lobbied for legislation enabling the creation of HAVEN and joined the organization in 2008. She worked closely with the Board of Directors, Vice President of Operations and Vice President of Finance, to oversee operations and to guide HAVEN’s growth and sustainability. She is a high honors graduate of Smith College and received her Juris Doctor degree from University of Connecticut School of Law.

Linda Barile, PhD, RN | Former Medical Director

Linda Barile, Ph.D, R.N., served as the Acting Medical Director. She previously served as the Associate Program Director. Linda joined HAVEN in 2007. She conducted interventions, oversees support services, and followed ongoing compliance with wellness programs for HAVEN. She provided peer support and met with professionals to help them develop insight necessary to maintain their recovery process and commitment to wellness. She is a graduate of the University of Connecticut with a Doctor of Philosophy degree. She also holds Master of Nursing degree from the University of California and obtained an undergraduate degree from the University of Connecticut.

Steve Sheehan, LCSW | Former Director of Case Management

Stephen Sheehan, LCSW served as Director of Case Management. He joined HAVEN in 2011. Steve managed the urine drug screening process for participants. In addition, he also oversaw and provided direction to HAVEN’s other case managers. He is a graduate of the University of Connecticut with a Master’s Degree in Social Work and is a Licensed Clinical Social Worker. Steve retired from HAVEN on June 27, 2019. Steve has been a devoted member of HAVEN for more than eight years. We are grateful to Steve for his years of service and support. He will be greatly missed by both colleagues and participants alike.

Katherine Grieco, DO, FASAM | Former Medical Director


Katherine Grieco, D.O., F.A.S.A.M. served as our Medical Director. She is Board Certified in Family and Addiction Medicine. Dr. Grieco joined HAVEN in 2018. She conducted interventions, oversaw support services, and followed ongoing compliance with wellness programs for HAVEN participants. She is a graduate of the University of New England College of Osteopathic Medicine and completed an HIV primary care fellowship at the University of California San Francisco, followed by an addiction medicine fellowship at Yale School of Medicine. Prior to her role at HAVEN, she worked in direct clinical care as the medical director of a methadone maintenance treatment program and inpatient detox center in New Haven, as well as director of an in-hospital detox unit in Boston. She has an Undergraduate Degree from Wittenberg University. We are greatful to Dr. Grieco for her hard work and dedication. She will be greatly missed and HAVEN wishes her success in her career.

Michelle Nielson | Former Vice President of Finance

Michelle Nielson served as the Vice President of Finance. Michelle joined HAVEN in 2013. She worked closely with the Chief Executive Officer, Vice President of Operations and the Board of Directors to manage the cash flow and expense control procedures for the organization. She also handled employee benefit administration and human resource matters. Michelle is a Cum Laude graduate of the University of Connecticut with a Bachelor of Science degree in Business Administration.

Lee Albert, LCSW, LADC | Former Professional Director

Lee Albert, LCSW, LADC served as Professional Director. Lee joined HAVEN in 2019. She oversaw support services and followed ongoing compliance with wellness programs for HAVEN. She has a Master’s Degree in Social Work from the University of Connecticut and a Bachelor Degree in Social Work from McGill University. Prior to joining HAVEN, she was the Program Manager at the Institute of Living’s PHP /IOP and older adult programs. Lee retired from HAVEN in March 2021, and HAVEN wishes her a relaxing and fulfilling retirement.

If you have any question, please call the HAVEN office at (860) 828-3175.