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Meet Our Team

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 is excited to provide vital services to the community in Portland, where she was born and raised.

Primary Care

Larry Adrian PA-C, MHP

Board-Certified Physician Assistant Larry Adrian graduated from St. Michael’s College. He completed his Physician Assistant studies at Baylor College of Medicine in Houston, Texas, and then completed post-graduate surgical training at Montefiore Hospital and Medical Center in Bronx, New York and Geisinger Medical Center in Danville, Pennsylvania. He received his Master’s Degree in Health Policy from Northeastern University in Boston, Massachusetts. He has strong interests in international healthcare delivery and health justice.

Jean Bugbee, PNP

A board-certified Pediatric Nurse Practitioner, Jean earned her nursing degree from the University of Vermont and her master’s degree in Pediatric Primary Care Nursing from Boston University. She has experience at practices here and in New Hampshire, as well as volunteering in Honduras and Haiti.

Gladys Estrada, MD, Clinical Director at Brickhill

Gladys provides the clinical leadership and oversight at our South Portland primary care practice. She comes to Maine from Chicago where she completed her residency and fellowship after earning her BA from Harvard and MD from Georgetown Medical School. She speaks fluent Spanish and has a passion for family medicine, with a particular interest in women's health.

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 is excited to provide vital services to the community in Portland, where she was born and raised.

Elizabeth Frutiger, MD

A board-certified family physician, Elizabeth received her MD from the University of Massachusetts and completed training at Boston University Medical Center. She feels privileged to share in her patients’ efforts to live well, from birth to end-of-life.

Chris Gage, MS, ARNP, Family Nurse Practitioner

Chris Gage is a board certified Family Nurse Practitioner. He received his Master’s in Science at the University of Illinois at Chicago. He has a particular interest in family medicine, caring for the whole person, community health, and working across cultures.

Catherine Gaynor, FNP, Clinical Director of Public Housing

Catherine received her master’s in nursing from the University of Southern Maine. She integrates a holistic approach into her care for patients of all ages, with a focus on women’s health, and feels privileged to be a part of each patient’s journey toward a balanced, healthy life.

Alison Gorman, MD

A board-certified family physician, Alison earned her MD at Albany (NY) Medical College and completed her training in Los Angeles. She cares for patients from birth to end-of-life, and provides chronic disease management and adolescent health.

Donna Lawlor, ANP-BC, DNP, Clinical Director of the Healthcare for the Homeless Program

Donna is a board-certified Adult Nurse Practitioner. She earned her master’s in nursing from Yale University and her doctorate from New York University, College of Nursing. Donna has a keen interest in community health and working in community-based health centers.

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. 

Gita Rao, MD, Lead Pediatrician

Our lead pediatrician, Gita earned her MD at Boston University School of Medicine and completed her pediatric training at Boston Children’s and Massachusetts General Hospitals. In addition to her medical experience, she organizes broader family wellness programs.

Maggie Ray, CNP

Maggie is a family nurse practitioner with a background in critical care nursing and international development. She earned her master’s in nursing at the University of Southern Maine and her master’s in international affairs from New School University in New York. A Florida native, Maggie has a passion for working with people from all over the world and feels privileged to get the opportunity to provide care for families in the greater Portland area.

Jennifer Rogers, NP-C, AAHIVS

A board-certified family nurse practitioner and HIV specialist, Jennifer Rogers received her Master’s in nursing from the University of Southern Maine. She works collaboratively with the medical team at Greater Portland Health and provides specialty care for people living with HIV, viral hepatitis, and latent TB infections.

Gretchen Speed, Certified Adult Nurse Practitioner

Gretchen received her master’s in nursing from Northeastern University in Boston. She enjoys her work optimizing health and wellness for a diverse population.

Ryan Trosper, PA

A board-certified physician assistant, Ryan was born in Limestone,graduated from the University of New England, and earned his master’s in science from Le Moyne College in Syracuse, NY. He has practiced in primary care, emergency medicine, and urgent care, and is excited to be back in his home state.

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 abuse treatment (including medication-assisted treatment), chronic disease management, and women's reproductive health (including procedures such as contraceptive device placement and colposcopy).‚Äč

Behavioral and Mental Health

Muse Ali, LCSW

Muse earned his master’s degree in social work from the University of Southern Maine. Originally from Somalia, he has a special interest in the delivery of culturally sensitive care, and provides medical interpreting assistance to adult patients in English, Somali, Arabic and Urdu. He uses EMDR therapy to reduce the effects of trauma.

Olga Alicea, LCSW, CADC

Olga Alicea is a Clinical Social Worker with a MSW from Boston College.  As a counselor, she aims to create a welcoming, non-judgmental, nurturing space that allows clients the opportunity to trust and create transformation in their lives.  Mindfulness and mind~body awareness, warmth and often humor are all key ingredients to her practice. 

Jenny Bouldry, LCSW, Pediatric/Clinical Social Worker

An explorer of both the Northeast and Northwest, Jenny attended the University of New England. She loves working with youth of all ages; is passionate about creating trusting, supportive connections, and working within an integrated care model at Greater Portland Health.

Marianne Donahue, LCSW

Marianne earned her degree in social work from Boston University, and has over 25 years of experience helping individuals gain insight and learn skills to improve their emotional well being. She has a special interest and training in trauma, grief, mental health, and substance abuse.

Joanna Kass, Psychiatric/Mental Health Nurse Practitioner

Joanna was born and raised in Maine and cherishes the local community. She completed undergraduate degrees in psychology and biology at Bowdoin College and obtained her advanced practice nursing degree at the University of Southern Maine. She provides psychiatric care for school-aged children, adolescents, and adults.

Lori Nicholas, Psychiatric Nurse Practitioner

Lori worked with the homeless for many years before graduating from the University of Southern Maine. She offers psychiatric specialty care for children and adults.

Dan O'Brien, Psychiatric/Mental Health Nurse Practitioner

A board-certified nurse practitioner, Dan received his Master’s in Science at the University of Southern Maine. He is excited to be serving the diverse needs of the community. Dan provides psychiatric care for adolescents and adults.

Heather Roberts, LCSW/LADC

Heather is a licensed clinical social worker who has specialized in substance use disorders for the past ten years. She has always had a passion for helping others and being able to aid in the process of change for those reaching out for support. Heather believes there is a strong correlation between substance use disorders and mental health and uses a variety of counseling techniques such as Motivational Interviewing and Cognitive Behavioral Therapy to address these concerns.

Kira Sawyer, LCSW

Kira earned her master’s in social work from the University of Texas at Austin. Using evidence-based interventions such as Cognitive Behavior Therapy and mindfulness, she helps people from diverse backgrounds draw on their strengths and values to learn practical skills, make lasting changes, and lead fulfilling lives.

Erin Schwarz, DO

Dr. Schwarz chose to work at Greater Portland Health to continue her commitment to working with communities who have barriers to accessing care. She is particularly interested providing culturally sensitive and appropriate psychiatric care to our local immigrant, refugee, and asylee populations. Erin received her medical degree from Kirksville College of Osteopathic Medicine and completed her psychiatry residency at Oregon Health & Science University.

Heidi Sistare, LCSW/CADC

Heidi received her master’s in social work from University of New England. Her experience includes work with adults, children, and families, with a focus on trauma and cross-cultural work. Heidi is grateful to learn with and from the team at Greater Portland Health and the patients who trust her with their stories.

Zoe Wolf, LMSW-CC

Zoe is a graduate of Boston University with a background in mindfulness education. She is interested in utilizing a mindful, strengths-based approach for a collaborative therapeutic process, and is excited to be working with the wonderful team and clients at GPH.

Jennie Yamartino, LCSW

Jennie is a native Mainer who earned her master’s degree from the University of Michigan. She has worked with and alongside people facing oppression and injustice in Chicago, New York City, and Oakland, California. At the heart of her work is an unshakable belief in the intrinsic worth of every human being.


John Fitzsimons, DMD, Dental Director

John earned his DMD at Boston University in 2011 and then completed a general practice residency at Penobscot Healthcare in Bangor.  Following residency, Dr. Fitzsimons served six years at a federally qualified health center in Portsmouth, NH.  He is excited to return to Maine and is looking forward to expanding the scope of services provided in the dental component of this integrated mission. Dr. Fitzsimons is an active member of the Academy of General Dentistry, Maine Dental Association, and the American Dental Association.

Chelsea Toussaint, DMD

Dr. Toussaint is a board-certified general dentist for the Children’s Oral Health Program and Preble Street. Originally from northern Maine, she earned her DMD from the University of New England College of Dental Medicine in 2017, and has lived in Portland for over 10 years. Dr. Toussaint has a background in providing care for the homeless and culturally diverse populations, and she is excited to return to public health with a focus on patient education, fun, and compassionate oral health care.