Mitchell Ehrlich, MD
Medical Director
Dr. Ehrlich is a specialist in Physical Medicine and Rehabilitation (Physiatry). He has been Board Certified by the American Board of Physical Medicine and Rehab since 1987. He is a graduate of Lafayette College in 1978 with a Bachelor’s in Chemistry and SUNY Downstage College of Medicine in 1982.
Doreen Dimanche-Smith, FNP-C, APRN, MSN, BSN
Chief Medical Officer of Thrive Medical Clinics
Doreen has a paralegal degree and legal studies. Doreen received her BSN and MSN with honors, both from Stony Brook University. She is currently in the process of completing her Doctorate in Executive Leadership. She is a member of the American Academy of Anti-Aging Medicine and the American Association of Nurse Practitioners (AANP). Doreen has experience in pediatrics and adult ICU, and emergency rooms. In 2020, Doreen opened Thrive Medical of Smithtown, NY. After successfully managing the office as the President in 2021, Doreen became the Chief Medical Officer for all the Thrive Medical locations. Doreen is a mother to two step-children and mother of four children. She enjoys being a mom, laughing, shopping, dancing battles with her kids, singing Whitney Houston songs, and spending time with her husband and family.
Gabrielle Herard, FNP-C, APRN, MSN, BSN

Rolande Olivier, FNP-C
Rolande Olivier is a board-certified Family Nurse Practitioner; she received her Bachelor’s Degree at Grand Canyon University in Phoenix, Arizona, then went on to get her Master’s in Nursing from Long Island University, graduating as a Nurse Practitioner in 2018. Before becoming a nurse practitioner, Rolande worked with the geriatric population, then continued her career as a trauma nurse in a trauma II center. as a Nurse and nurse practitioner, Rolande has worked in inpatient and outpatient settings. Rolande enjoys writing short stories and reading different genres in her spare time.
Leonard Framson, PT

Stacy Niessing, MS, LAc.
- Bachelors of Professional Studies, Health Science – New York College of Health Professions
- Masters of Science in Acupuncture – New York College of Health Professions
Luis Yepes, MS, LAc
Luis, originally from Puerto Rico, found a passion for acupuncture after the devastation caused by Hurricane Maria in 2017. He received his Masters of Science in Acupuncture from the New York College of Health Professions and has experience in effectively treating orthopedic pain, allergies, and neurological conditions.
Alyssa Stare, MS, LAC, LMT

Anthony Pusateri, DC

To schedule an appointment with our friendly staff, call 631-239-8262 today.