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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.

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


Dr. Renee has served as Chief Medical Officer at Greater Portland Health since June 2014. Dr. Renee graduated from the University of Vermont College of Medicine in 2003 and completed her residency in Internal Medicine at New York University in 2006. Prior to joining Greater Portland Health, she worked at Maine Medical Partners Cape Elizabeth Internal Medicine for 8 years. Dr. Renee is Board Certified in Internal Medicine, a Fellow in the American College of Physicians, and a McAfee Fellow through the Hanley Center for Health Leadership. Born and raised in Portland, Dr. Renee is honored to provide excellent healthcare to those most in need.


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 Doctor of Medicine at Albany Medical College and completed her training in Los Angeles. Dr. Alison cares for patients from birth to end-of-life, and provides chronic disease management and adolescent healthcare. 

Megan Waterman, MD MPH


Dr. Megan Waterman is a board-certified family physician. She received her Doctor of Medicine and Master of Public Health from Boston University, and completed her residency and academic fellowship training at the University of Illinois Chicago. Dr. Megan cares for patients of all ages, and is particularly passionate about substance use disorder treatment (including medication-assisted treatment), chronic disease management, and women’s reproductive health (including contraceptive device placement and colposcopy procedures).

Diana Lapp, MD, Clinical Director of 180 Park Avenue


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

Lindsay Tremblay, MS, FNP


Lindsay Tremblay received her Master of Science in Nursing with a Family Nurse Practitioner concentration from Georgetown University. She has experience working in both primary care and urgent care settings, including as a Family Nurse Practitioner at Sacopee Valley Health Center. Lindsay feels privileged to be working at Greater Portland Health in primary care for patients from birth to end-of-life. 

Courtney Pladsen, FNP


Courtney Pladsen received her Bachelor of Science in Nursing from Boston College and worked as an Emergency Room Nurse for five years before going on to receive her graduate degree from Georgetown University and becoming a Nurse Practitioner. In 2018, she was awarded the Robert Wood Johnson Foundation’s Culture of Health Leaders Fellowship to develop programs that promote health equity, specifically for people experiencing homelessness. Courtney provides medical, mental health, and substance use to people who are experiencing homelessness, as well as medical outreach to people who were formerly homeless.