Our medical Team
Jose Ventura, CMD, FAAFP, SFHM
Founder & Chief Medical Officer
Dr. Ventura is a board-certified family physician and fellowship-trained geriatrician with over 15 years of clinical and leadership experience. He specializes in acute, post-acute, and chronic care related to aging, with certifications in Obesity Medicine, Wound Care, and Medical Directorship in Post-Acute Care (certified by PALTmed). As the founder of BThere Healthcare, Dr. Ventura leads a multidisciplinary team delivering integrated services across assisted living, long-term care, and home-based settings. His focus is on proactive, person-centered care that promotes dignity, function, and quality of life.
Jenn Cavalari, DO
Medical Director and Physician Lead
Jennifer Cavalari, DO is a board-certified family medicine physician with advanced training in integrative medicine, traditional Chinese medicine, and osteopathic manipulative treatment. She specializes in long-term and palliative care, where she values building meaningful relationships and supporting patients through end-of-life transitions with dignity. Dr. Cavalari was named Maine Caregiver of the Year in 2018 and enjoys camping, traveling, and practicing Brazilian jiu-jitsu—often from her camper van.
Olivia Simpson, MD
Medical Director
Dr. Olivia Simpson is a board-certified family and geriatric medicine physician with specialized training in the care of older adults. She completed her Family Medicine Residency at Central Maine Medical Center and a Geriatric Medicine Fellowship at Maine Dartmouth, where she later served as faculty. She has extensive experience in dementia care, chronic disease management, wound care, and lymphedema treatment, and holds certifications as both a Wound Treatment Associate (WTA-C) and Certified Lymphedema Therapist (CLT). She lives in Brunswick, Maine, with her spouse and two children.
Michael Davis, FNP-C
Lead Nurse Practitioner
Michael Davis is a board-certified Family Nurse Practitioner with a strong focus on geriatric medicine and integrated care in all our facilities. He brings years of experience from post-acute rehabilitation and has served in regional leadership roles supporting advanced practice providers in delivering high-quality care. Michael combines traditional medical approaches with functional medicine to treat the whole person, aiming to improve function, independence, and quality of life. As part of BThere Healthcare, he provides on-site care and ensures coordinated support through telehealth platforms—bridging in-person and virtual care to meet the evolving needs of older adults.
Erica Amoako, AGPCNP-C
Nurse Practitioner
Erica is a board-certified Adult-Gerontology Primary Care Nurse Practitioner dedicated to preventive care and chronic disease management for adults and older adults. She earned her MSN in Public Health and a Post-Master’s Certificate in Adult-Gerontology Primary Care from Russell Sage College. With a strong background in critical care and cardiac nursing, Erica combines clinical expertise with compassion. Her interests include cardiovascular health, geriatric wellness, and health equity. Outside of work, she enjoys traveling and family time.
Tyler Pinkham
Nurse Practitioner
Tyler is a certified Family Nurse Practitioner and member of the American Association of Nurse Practitioners. He earned his master’s degree from Husson University and has a broad clinical background including neurology, orthopedics, renal and gastrointestinal care, and primary care. This experience allows him to provide comprehensive, evidence-based care grounded in strong patient relationships. Outside of work, he enjoys Maine’s four seasons—boating, paddle boarding, skiing—and spending time with his French Bulldog, Macaroon.
Shannon Achorn, FNP-C
Nurse Practitioner
Shannon is a board-certified Family Nurse Practitioner with a strong background in critical care, cardiac, and medical-surgical nursing. Her experience across Southern Maine brings flexibility and a broad skillset to her geriatric care role. She is actively pursuing certifications in wound and palliative care.
Heather Kinsey RN, MSN, FNP-C
Nurse Practitioner
Heather is a certified Family Nurse Practitioner with over 22 years in nursing. Her experience spans urgent care, acute care, and palliative care. She now focuses on geriatric care in facility-based settings, delivering compassionate, respectful care that supports dignity and well-being.
Russell Kimball
Physician Assistant
Russell Kimball, PA-C is a physician assistant with over 24 years of experience in psychiatric care and opioid use disorder treatment. He provides telehealth-based mental health services across Maine and leads the ADHD clinic at BThere Healthcare. A U.S. Army veteran, Russell holds a Master of Science in Physician Assistant Studies from the University of New England and has served as a psychiatric consultant for Maine’s Co-Occurring Disorders Court. He brings deep experience, compassion, and dedication to his work.
Tricia Garrett
Physician Assistant
Tricia has been a Physician Assistant since 2018 with a background in urgent care, medical aesthetics, and public health. She’s passionate about supporting ADHD, autism, and perinatal mental health, and is committed to expanding access to care through technology. Outside of work, she enjoys time at camp with her husband, toddler, and two quirky poodles.
Mirranda brown
Clinical Coordinator
Mirranda is a compassionate Clinical Coordinator with a background in healthcare and customer service. She’s known for her warm, organized approach and commitment to making patients feel truly cared for. Currently pursuing a degree in Psychology, she’s passionate about community service and plans to further her career with a master’s in healthcare.
Tiffany Buzzell
Practice Manager
Tiffany Buzzell serves as the Clinical Coordinator for Geriatrics, acting as a key liaison between partner facilities and the clinical team to ensure high-quality, compliant care. She brings over 10 years of experience in healthcare operations and case management, including leadership roles in the addiction population and the City of Waterville. Based in Central Maine, Tiffany enjoys time with her nieces and nephew, reading, and exploring the outdoors.
Partners In Wellness
At BThere Healthcare, wellness isn't a separate service—it’s woven into everything we do. Our team of dedicated providers, from medical doctors and nurse practitioners to behavioral health specialists, works collaboratively to care for the whole person, not just their conditions. Whether managing chronic illness, supporting mental health, or helping patients recover and thrive in post-acute settings, our team brings compassion, expertise, and a proactive mindset to every visit.
A Team You Can Trust
Whether you're a patient, caregiver, facility partner, or health plan, you can count on the BThere team for:
-
Clinical Excellence grounded in evidence-based geriatric care
-
Compassionate Communication that centers the needs of patients and families
-
Continuity of Care across in-home, facility-based, and remote settings
-
Credentialed Stability to maintain strong relationships with payers and partners
We are proud to stand at the intersection of traditional care and transformative health, ready to serve with integrity, experience, and vision.
I was immediately impressed by Dr. Ventura's compassionate approach, clinical knowledge, dedication and dependability. He made the comment of being proactive instead of reactive to our resident's ongoing healthcare needs. His communication is direct and quick; I can rely on him for immediate triage needs or something simple like a Tylenol order. Our residents and their families trust his decision making and guidance through their healthcare journeys. I'm thankful for his team and proud that our residents get the care they deserve ."
Adam Clukey, RN, Wellness Director
The Highlands
With BThere Healthcare and the services provided by Dr. Jose Ventura our Medical Director and his team. We have had continuity of care, in depth review of and monitoring of all areas of care, innovative solutions and instant responses to any of our residents needs. It has been the BEST decision we made for our center and those that we serve. I know that our deserving residents are going to see a compassionate provider who is committed to ensuring the best care available. We are very thankful to work with such a professional and highly skilled group of providers.
Lisa Scully MLA,LSW, Administrator
Sanfield Rehabilitation & Living