Addiction Specialists and Doctors at Banyan

Jeet D Joshi MD is currently the medical director of Banyan Delaware. He has been a practicing psychiatrist since 2016. Dr. Joshi also focuses on psychopharmacology as well as psychotherapeutic and medical management of eating disorders. In addition to treating eating disorders, Dr. Joshi is a child and adolescent psychiatrist. He provides services for inpatient psychiatric level of care as well as drug and alcohol treatment programs in both Pennsylvania and Delaware areas.

Oliver Hora is the director of nursing at Banyan Pompano. In 2001, Oliver finished nursing school in Germany. His major fields he worked in were mental health, substance abuse, and detox units. He worked for two years in adolescence health and mental health. Since 2010, Oliver has been in the United States where he worked in a variety of detox facilities before coming to Banyan in 2015. He offers nursing educational groups where they discuss nutrition, healthy lifestyles, disease prevention, anatomy, and healthcare needs. Oliver just wants to provide a safe environment for his clients. He says that his favorite part of the day is the clients.

Amy Horan was born in Illinois and moved to Coral Springs, FL when she was 5 years old. She obtained her LPN in 2001 and her RN in 2020. She got her start in the addiction field by working at another treatment center right out of LPN school in 2001. Amy developed a passion for mental health when she lived in Arizona for a year and worked at a community inpatient center. She is passionate about what she does because she enjoys working with substance abuse and mental health clients. Her goal is to always provide them with the dignity and respect that is often overlooked with their diagnosis. She has always enjoyed watching their transformation. She says, “they arrive to use at one of the hardest times in their lives and transform into the healthy members of our community.”

Amy’s favorite part of her position is mentoring the new nurses and teaching them about mental illness and substance abuse and watching them blossom in their career at Banyan.
Her goal at Banyan is for every one of our clients to be treated how we would treat our own family. She instills this in each one of our nurses. Amy

Dr. Darrin Mangiacarne graduated from the Philadelphia College of Osteopathic Medicine (PCOM). He received his master’s degree in Public Health from the University of Southern Mississippi and completed his family medicine residency at St. Luke’s Hospital in Bethlehem, PA. Darrin became the second addiction medicine fellow at Geisinger Health System. He is a Certified Physician Executive and a Medical Review Officer.

Dr. Mangiacarne is board certified in family medicine from the American Osteopathic Board of Family Physicians (AOBFP) and addiction medicine from the American Board of Preventive Medicine (ABPM) and (AOBFP). He is a Distinguished Fellow of the American Society of Addiction Medicine (DFASAM) and a fellow of the American Osteopathic Academy of Addiction Medicine (FAOAAM). He also currently holds the title of Secretary/Treasurer for the American Osteopathic Academy of Addiction Medicine.

Dr. Mangiacarne has worked in the addiction field for the past 11 years in both inpatient and outpatient settings. He co-chaired the Indiana Attorney General’s Task Force on addiction. Dr. Mangiacarne is the Past-President of the Indiana Society of Addiction Medicine. Before joining Banyan, he served as the Regional Medical Director for another program, overseeing their medication assisted treatment programming throughout the Midwest.

Gloria is a nurse and a New York native who relocated to martin County in 2016. She has been a part of the Stuart nursing team since they opened their doors in 2016. She has been a nurse for over 10 years with experience in the surgery trauma field, burns, pediatrics and dermatology. Gloria is currently furthering her education to acquire her Bachelor of Science in Nursing. Her goal is to continue her growth within the Banyan company and to fulfill her passion in helping the needed community in their recovery process.During her free time, she enjoys spending time with her 13-year-old son Anthony and their family at the beach, the movies and traveling.

Guerline was born and raised in Haiti but came to the U.S in 1998. She received her RN license from Florida Career College in 2011 and then went to South University, receiving her BSN. Although she isn’t in recovery herself, she has been a witness to the detrimental effects alcohol and drugs can have on people she cares about. She is passionate about mental health, having previously helped patients in the VA with a history of trauma and PTSD. Guerline has always known she wanted to work with patients suffering from mental health issues. She is a naturally caring person which is why she is so passionate about helping others. Her goal for her career with Banyan is to be able to achieve the maximum good to every one of her patients as well as her coworkers through dedicated commitment and hard work while maintaining a positive outcome that is mutually rewarding to all.

Dr. Keerthy Sunder, MD is an accomplished Physician with extensive experience as a clinician, researcher, administrator, teacher, and lecturer. He is also author of the Amazon International Best Seller book “Face your Addictions and Save your Life” and the creator of an online meditation program for health and wellness (www.tunemybrain.com) and for PTSD among returning war Veterans (www.beatptsd.com).

Dr. Sunder holds Diplomates from the American Board of Psychiatry and Neurology and the American Board of Addiction Medicine. He is also a Diplomate of the Royal College of Obstetricians and Gynecologists in London, England and certified as a Credentialed Menopause Practitioner by the North American Menopause Society. He served his Ob/Gyn residency at James Cook University Hospital in England. He served his Psychiatry residency at the University of Bristol, England as well as Western Psychiatric Institute and Clinic at the University of Pittsburgh Medical Center in Pennsylvania. He is a Distinguished Fellow of the American Psychiatric Association, a Member of the Credentialing Committee for the American Board of Addiction Medicine and a Life Member of the Academy of Integrative Health and Medicine. He is currently on Clinical Faculty with the Department of Psychiatry, University of Riverside School of Medicine and an Adjunct

Danielle Menendez is a Florida native, born and raised in Miami. Danielle moved to the Martin County area in 1997. Danielle’s career began as a BHT (Behavioral Health Technician) in an all-male mental health prison. It was there that Danielle found her passion for helping people, especially those with dual diagnosis. She decided to obtain her nursing license in order to further her education to combat the Substance Abuse epidemic. After obtaining her L.P.N., Danielle began working for a detox facility. A year later, Danielle decided to become an R.N.

Danielle began her career with Banyan in Downtown Stuart as the Director of Nursing for our Detox. She has built a dynamic nursing department with nurses from various medical backgrounds, from the ER to Mental Health specialties, in order to offer our clients the most caring and knowledgeable nursing staff possible. Today she holds the position of National Director of Admission Approvals, assisting our admissions team with the medical approvals necessary to treat our patients.

Danielle plans to continue her schooling in the near future. She plans on obtaining her master’s degree in nursing and become a Nurse Practitioner.

Daniel was born and raised in Haiti. He moved to Florida in 1996. He received his education at Chamberlain University, where he studied Nursing. He completed his bachelor’s degree in Nursing in February 2022. Although he is not in recovery himself, he is passionate about helping people who have hit rock bottom. One of the best aspects of his job is that he can educate the medical staff about the causes, impacts, signs/symptoms of addiction, and the treatments Banyan can provide to each individual. His future goal working for Banyan is to continue developing various services and programs that will benefit those in Substance Abuse.

Linda Santiago is a California resident, born and raised in the San Fernando Valley. While a student at Mission College, she volunteered for a suicide prevention hotline. It was here that she realized her passion for working in the mental health field. After finishing nursing school, she began working at a Dual Diagnosis facility, it was here that she identified her passion for working with people with not only mental health, but substance abuse as well. Linda has been in supervisory positions since 2012 and thrives in leading teams towards high standards of quality patient care. Linda offers nursing educational groups where they discuss unique ways to engage patient’s interest such as jeopardy/trivia and role-playing games. Linda finds creative and fun ways to educate patients and engage staff morale. Linda has been dedicated to the field of dual diagnosis for most of her career and continues to place top priority on patient care.
Linda joined the Banyan Palm Springs Team in August 2020 and looks forward to further developing and strengthening our nursing department. Our goal is to create a department dedicated to the care and compassion of the patients we serve.

Xiomara Jimenez was born and raised in Philadelphia, PA with a Puerto Rican background. She received a Bachelor’s degree for nursing at Temple University in 2008 and later on received her Master’s from La Salle University in 2018. Although Xiomara has not first handedly been affected by drug abuse, she has witness the affects it has made on the lives of both friends and family. Xiomara began her career has a Nurse Practitioner working in PHP and IOP level of care for substance use disorders, while simultaneously running a Sub Oxone maintenance program. She then went on to helping women and children who suffered from mental health and substance use disorders. Growing up in North Philadelphia, she witnessed the destruction drugs and alcohol had on the community as well as the impact it had on the families involved and believed how one helping hand could provide the necessary courage and make all the difference in an individual’s life.