David Tigtig, RN, MSN, FNP-C
NURSE PRACTIONER
David Tigtig, RN, MSN, FNP-C, is an experienced and compassionate board-certified family nurse practitioner at Healing Hearts Clinic in Conroe, The Woodlands, and Huntsville, Texas. David has more than seven years of experience in direct patient care. He enjoys helping cardiac patients with heart conditions, tests like echocardiogram, preoperative evaluation, and much more.
David earned his bachelor’s degree in nursing at the University of Texas in Arlington. He completed his master’s degree to become a family nurse practitioner at the University of Cincinnati. David is an active member of the American Association of Nurse Practitioners.
As a nurse practitioner at Healing Hearts Clinic, David performs exams, interprets studies, and works closely with a supervising cardiologist to establish and coordinate an effective plan of care for all patients. Heart health is a passion for David, and he loves helping his patients along the road to wellness.
David Bennett, MSN, APRN, AGACNP-BC
Nurse Practioner
David Bennett is a board-certified Adult Gerontology Acute Care Nurse Practitioner. As part of the team at Healing Hearts Clinic he will be caring for patients in the inpatient arena at Houston Methodist The Woodlands, Memorial Hermann The Woodlands, and HCA Conroe Hospitals. With more than 20 years' experience in the healthcare area, David brings his love of cardiology, teaching and patient care to our practice. From treating life threatening heart conditions in the field as a Paramedic, to treating medical emergencies in the hospital in the nursing role, to then further treating patients in the Cardiac Catheterization Lab; David brings a broad range of experience and knowledge to the team. David is passionate about educating his patients on a better, healthier lifestyle that will work for them and helps them understand their heart conditions. Being your Cardiology Nurse Practitioner is his dream come true.
Toni Vollmer, NP
board-certified Nurse Practitioner
I began my nursing journey in 1997, specializing in intensive care, and later expanded my horizons by graduating as a Nurse Practitioner from Indiana Wesleyan University in 2017. With a solid foundation in hospital medicine, I spent three and a half years as a hospitalist before returning to my hometown in Texas to serve as a Family Nurse Practitioner for two years.
Excited to embark on a new path in cardiology, I am dedicated to providing top-notch care to my patients. As a proud member of the American Association of Nurse Practitioners (AANP) and board-certified by the AANP Certification Board (AANPCB), I am committed to delivering evidence-based, compassionate care. Under the guidance of Dr. Preeti Desai, in the clinic along with rounding at Houston Methodist The Woodlands and HCA Conroe, eager to contribute to the cardiovascular health of our community.
My goal is simple: to empower my patients to lead healthier lives through comprehensive, patient-centered care. I am honored to be entrusted with their well-being and strive to uphold the highest standards of excellence in everything I do.
Brenda Mangar, MSN, APRN, FNP-C
board-certified Nurse Practitioner
Brenda is a dedicated bilingual nurse practitioner with a diverse background in both inpatient and outpatient care. Brenda is certified by the American Academy of Nurse Practitioners. She earned a Bachelor of Science in Nursing from the University of Houston and a Master of Science in Nursing-Family Nurse Practitioner from Texas Woman’s University. Brenda is a current member of the American Association of Nurse Practitioners.
With experience spanning pediatrics, adult care, preoperative care, medical-surgical, cardiac step-down, and ICU, Brenda brings a comprehensive approach to cardiovascular health. Her expertise includes managing acute and chronic cardiac conditions, patient education, and optimizing treatment plans to improve patient outcomes. Working alongside Dr. Yamani, our goal is to help patients navigate complex treatment plans and improve their cardiac health.
Enthusiastic about delivering high-quality, evidence-based care, she is committed to supporting patients in their journey to better heart health.
