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Comprehensive, compassionate, and respectful care for patients experiencing substance use disorder.

Our Services

Greater Portland Health screens patients for substance use disorder during their first visit and at annual visits to help recognize any unmet need or opportunities for further screening, counseling, and treatment.

Tom Hibbert


Tom Hibbert is a person of 36 years continuous, long-term recovery. He suffered from heroin and alcohol addiction substance use disorders. As a Peer Support Coordinator/Recovery Coach, Tom uses his skills in motivational interviewing techniques to meet patients where they are in struggling with addiction disorders. He helps develop patients to center on their goals, leading to successful changes in daily living behaviors and better engagement in the recovery process.

Joey Robichaud


Joey Robichaud earned his Associates Degrees in Liberal Studies, Communication, and New Media from Southern Maine Community College. He is a Certified Peer Support Specialist and Certified SMART Facilitator. He has lived in Maine for his whole life and most recently provided peer support services at Milestone Recovery before joining the Greater Portland Health team in early 2022. Joey has been sober for 6 years and enjoys playing sports, cooking, and playing with his kitten. 

Contact our Substance Use Program Coordinator, Tara Kosma, at

for a referral to Greater Pathways.

Renee Fay-Leblanc, MD, Chief Medical Officer


A board-certified physician, Renee attended medical school at the University of Vermont and completed her residency in Internal Medicine at New York University. She has been practicing Internal Medicine in the Portland area since 2006 and joined Greater Portland Health in 2014 as Chief Medical Officer. In addition to her administrative duties, Dr. Fay-LeBlanc sees patients at 180 Park Ave, 63 Preble Street and Franklin Towers.


Tara Kosma, LCSW, Director of Social Work


Tara Kosma grew up in Maine and completed her Master’s Degree at the University of New England. She is our Director of Social Work and provides brief and long-term psychotherapy to older children, adolescents, and adults. She treats individuals requiring gender identity support and those experiencing life transitions, mood disorders, substance misuse, and trauma. Tara is an LGBTQIA aware provider. 

Alison Gorman, MD


Dr. Alison Gorman is a board-certified family physician. She earned her Doctorate of Medicine at Albany Medical College and completed her training in Los Angeles. Dr. Gorman cares for patients from birth to end-of-life, and provides chronic disease management and adolescent healthcare. 

Megan Waterman, MD MPH


A board-certified family physician, Megan received her MD and MPH degrees from Boston University and completed her residency and academic fellowship training at UIC in Chicago, IL. She cares for patients of all ages, and particularly enjoys substance use disorder treatment (including medication-assisted treatment), chronic disease management, and women's reproductive health (including procedures such as contraceptive device placement and colposcopy).‚Äč

Diana Lapp, MD, Clinical Director of 180 Park Avenue


A board-certified family physician, Diana attended medical school at Howard University and completed her residency training in Oak Park, Illinois. Diana provides clinical leadership at the 180 Park Avenue health center. She enjoys providing care from birth to end-of-life.

Lindsay Tremblay, MS, FNP


Lindsay received an MS in Nursing with a concentration as Family Nurse Practitioner from Georgetown University. Her recent professional experience includes working as a Family Nurse Practitioner at Sacopee Valley Health Center. Here, her role included working in Primary care as well as Urgent Care assisting walk-in patients with acute concerns. She feels privileged to be working at Greater Portland Health in Primary Care for all ages from birth to end of life.  

Courtney Pladsen, FNP


After receiving a Bachelor’s of Science in Nursing from Boston College, Courtney worked as an ER Nurse for five years, went on to get a graduate degree from Georgetown University, and became a Nurse Practitioner (NP). In 2018, she was awarded the Robert Wood Johnson Foundation’s Culture of Health Leaders Fellowship, where over the next three years she will continue to develop programs that promote health equity specifically for people who are experiencing homelessness. She currently provides medical, mental health, and substance use treatment to people who are experiencing homelessness at the 63 Preble St clinic as well as medical outreach to people who were formally homeless in the Housing First Locations across the city of Portland.