Find a Top Family Doctor Near Me in Lewisville, TX – Book an Appointment Instantly

Dr. Rory Allen is the Medical Director at MyFitMed and a highly respected physician specializing in Family Medicine, Occupational Medicine, and Preventive Health. With decades of experience and a passion for helping patients live longer, healthier, and happier lives, Dr. Allen ensures that MyFitMed continues to deliver the highest standards of functional and regenerative medicine, hormone therapy, and weight loss care across North Texas.

Graduating with his Doctor of Osteopathic Medicine (DO) degree from UNT Health Science Center in Fort Worth, Texas, Dr. Allen brings a comprehensive, whole-person approach to health and wellness. His foundation in business administration (BBA), combined with his medical expertise, gives him a unique perspective on leadership, patient care, and innovation in modern healthcare.

Dr. Allen strongly believes that preventive medicine is the key to optimal health. His philosophy centers on empowering patients through lifestyle optimization, hormone balance, and personalized treatment plans that address the root causes of illness rather than just symptoms. As Medical Director, he not only guides the clinical team at MyFitMed but also ensures that each patient receives superior care, individualized attention, and exceptional service.

Beyond his medical career, Dr. Allen’s life reflects his dedication to family, community, and wellness. While in college, he served on a church mission in Japan, an experience that deepened his appreciation for culture, service, and global health. Today, he continues to live a vibrant lifestyle that includes scuba diving, snow skiing, and outdoor fitness.

Dr. Allen is also a proud husband to his wife, Ashley, and a father of eight children, four of whom are currently in college. His growing family now includes four grandchildren, with three more on the way, bringing him great joy and fulfillment.

At MyFitMed, Dr. Allen is more than a medical director. He is a leader in preventive medicine, a mentor to providers, and a trusted partner in patient care. His mission is simple yet powerful: to help every patient achieve their best health so they can enjoy life to the fullest.

Patients seeking expert guidance in preventive medicine, hormone optimization, functional health, and weight management in Dallas, Frisco, Heath, and Southlake, TX can feel confident under the care and leadership of Dr. Rory Allen.

Dr. Julio C. Olivieri, MD
Medical Director, MyFitMed

Dr. Julio C. Olivieri is a Medical Director at MyFitMed and a highly experienced physician specializing in Internal Medicine, Geriatrics, and Preventive Health. With more than 30 years of clinical experience treating complex medical conditions—including diabetes, hypertension, heart disease, and metabolic disorders—Dr. Olivieri brings unmatched knowledge and dedication to helping patients achieve long-term health, vitality, and wellness.

Dr. Olivieri graduated from the University of Puerto Rico Science Campus in 1992 and completed his Internal Medicine residency at Damas Hospital in Ponce, Puerto Rico. Since then, he has cared for patients across the Dallas–Fort Worth area through both private practice and hospital care, including at Mesquite Community Hospital and Dallas Regional Medical Center. In addition to clinic work, he has provided house calls for patients in need and continues to serve multiple hospice agencies due to his deep commitment to palliative and compassionate care.

At MyFitMed, Dr. Olivieri is recognized for being highly knowledgeable and up to date with the latest research, studies, and protocols in weight loss medicine, hormone optimization, and regenerative care. His patients benefit from his evidence-based approach, where he combines advanced treatment strategies with decades of hands-on experience. Whether guiding patients through complex hormone cases, metabolic health concerns, or customized weight management programs, Dr. Olivieri is dedicated to delivering safe, effective, and cutting-edge care.

As Medical Director, Dr. Olivieri ensures that MyFitMed patients receive personalized treatment plans tailored to their unique health needs and goals. His philosophy is rooted in going above and beyond to help patients live not just longer, but healthier and happier lives.

Outside of medicine, Dr. Olivieri enjoys traveling abroad, spending quality time with his wife and three children, and exploring cultures that inspire his lifelong passion for health and wellness.

Patients seeking an expert in hormone therapy, advanced weight loss protocols, internal medicine, and geriatric care in Dallas, Frisco, Heath, and Southlake, TX can trust in the leadership and expertise of Dr. Julio C. Olivieri.

Modesta Onyia is a doctoral-prepared nurse practitioner focused on nursing practice and family medicine. Her wide range of clinical interests includes health promotion and disease prevention of patients across the lifespan. She has been practicing since 2013. Modesta completed her bachelor’s degree in nursing at Texas Tech University Health Sciences Center and received a master’s of nursing science degree in Family Nurse practitioner (Cum laude) from Texas Woman’s University in 2013. She completed her Doctor of Nursing Practice in 2018 at Texas Woman’s University in Dallas, Tx. Modesta has worked in different settings including inpatient and outpatient settings. She is a certified CPR instructor and is a Functional medicine graduate at SAFM. She is a member of the American Academy of Nurse Practitioners, North Texas nurse practitioners, and the National Association of Nigeria Nurse Practitioners US, among others. She believes that health is wealth when you know you do better.

Adolphus started out his career as a young staff nurse and worked his way up. He received his bachelor’s degree in nursing from Texas Woman’s University in 2005, and subsequently obtained his master’s and doctorate degree from the same school in 2011 and 2018 respectively. Adolphus has worked in a variety of healthcare settings, including hospitals, long-term care facilities and home health care homes. Adolphus believes in focusing on the whole person when caring for his patients. He is passionate about providing quality care while remaining mindful of his patients’ individual preferences and needs. In a world where everything is a trend, Adolphus is the one constant. From his love of the healthcare profession to his empathetic nature as a driving force, he remains steadfast in his abilities and passionate for the practice. Strong communication skills and a kind soul have been Adolphus assets in his long career dedicated to service.

Yasir Ahmed, MD, is a dual-board certified internal and family medicine specialist at MyHomeDoc Telehealth, where he offers online virtual doctor appointments to patients across Texas.

Dr. Ahmed is a compassionate and highly skilled medical doctor who is deeply committed to the well-being of his patients. With a strong background in internal and family medicine, he provides a comprehensive approach and ensures that his patients receive the highest quality care. 

Dr. Ahmed earned his Doctor of Medicine from Ross University School of Medicine in Miramar, Florida. After graduating, he completed his internal and family medicine residency at Eastern Virginia Medical School in Norfolk, Virginia, where he was chief resident. 

Dr. Ahmed’s dedication to staying up-to-date with the latest medical advancements and his emphasis on patient education make him a trusted healthcare provider in his community. His warm and empathetic approach to patient care has earned him the respect and gratitude of patients and colleagues. 

Dr. Ahmed is adept at managing a wide range of medical conditions and collaborating effectively with a patient-centric approach to ensure his patients feel comfortable and informed during their medical journey.

Daphne Jones-Black, FNP-BC, is a board-certified and highly accomplished family nurse practitioner, certified case manager, and certified occupational hearing conservationist. Daphne leads the expert team at Heart of Hope Housecalls, a patient-centered practice specializing in telehealth and house calls around the Dallas-Fort Worth metroplex region of Texas.

Daphne’s educational journey began at Concorde Career Institute-Arlington, where she completed a vocational nursing program that laid the groundwork for her career. She further honed her nursing skills at Excelsior University in Albany, New York, earning an Associate of Arts and Sciences in Registered Nursing in 2011.

Driven by a passion for nursing and a commitment to excellence, Daphne continued her education at Chamberlain University in Downers Grove, Illinois, where she achieved a bachelor’s degree as a registered nurse in 2014.

With a thirst for knowledge and a desire to expand her scope of practice, she pursued a master’s degree in family practitioner nursing at Chamberlain University, solidifying her expertise in primary and ambulatory care delivery.

Daphne has earned a reputation as a strategic nursing leader with a focus on achieving award-winning patient experiences. She prioritizes patient care above all else, understanding the importance of taking a holistic approach to care in a concerning, challenging, and heartfelt environment. She strives to deliver high-quality care at Heart of Hope Housecalls and welcomes the opportunity to connect with new and returning patients.

Dr. Ebere Israel Azubuike, MD ("Dr. Izzy"), is a family doctor serving patients of all ages at Mercy Family Clinic in Dallas, Texas. He has about 15 years of experience, and he specializes in primary care and family medicine. 

Dr. Izzy Azubuike graduated from the University of Texas Medical Branch School of Medicine in Galveston, Texas, in 2005. He completed his residency at the Methodist Health System Dallas, Texas, in 2008.

After finishing his formal education, Dr. Azubuike started initially as a hospitalist, seeing patients at various hospitals in Dallas area. During this period he realized that most of his hospital patients do not have a primary care doctor. For this reason, he opened his private practice, Mercy Family Clinic, (M.F.C.) in 2010. His main purpose was to start early preventive care with holistic approach to treatment, hence decreasing the need for these patients to go back to the hospital. He regularly sees every member of the family, and he’s proud to establish long-term relationships with everyone, from young children to seniors. Appointments with Dr. Azubuike aren’t rushed, and he ensures that all your questions are answered during each visit.

Dr. Azubuike understands the diverse health needs that families have. He takes time to understand each individual to diagnose their health conditions better and make the best recommendations for their treatment. He employs compassion and empathy in his art and that’s why his patients love him so much.

Dr. Azubuike is affiliated with the Methodist Health System in Dallas, Texas, and UT Southwestern Medical Center in Dallas, Texas. Trust Dr. Azubuike and his team at Mercy Family Clinic to provide the best evidence based medical care to you and your family.  

Lewis Nyantika, APRN, FNP-C, is a board-certified Family Practice Nurse Practitioner and Primary Care Practitioner at Primecare Family Practice in Arlington, Texas. Mr. Nyantika, who also goes by “Lewis,” prides himself in providing high-quality, compassionate, and individualized care that is both accessible and affordable.

He earned a Bachelor of Science in Nursing (BSN) from Texas Tech University (TTU) in Lubbock, Texas. Next, he achieved a Master of Science in Nursing (MSN) from the University of Texas at Arlington (UTA).

Lewis holds a national certification with the American Academy of Nurse Practitioners (AANP) as a family nurse practitioner.He thoroughly enjoys his work, helping patients in different areas of medicine, including the Emergency Room, Outpatient Urgent Care, and Primary Care. He specializes in Chronic Disease Management, Primary and Multi-Specialty Care, and Family Medicine. Lewis is fluent in both English and Swahili and looks forward to serving you.He is currently accepting new patients.

 

Maryline Ongangi, APRN, FNP-C, is a board-certified Primary Care Practitioner at the private medical practice Primecare Family Practice in Arlington, Texas. Ms. Ongangi, who also goes by “Maryline,” is a trusted and reliable nurse practitioner based in the Arlington area. She feels fortunate to be serving the community she calls home.

Maryline attended Texas Tech University (TTU) in Lubbock, Texas, where she earned her Bachelor’s Degree. Next, she attended Texas A&M University in College Station, where she achieved her Master’s Degree in Family Nursing.

Patients see Maryline for various reasons, including chronic disease management, acute visits, sports physicals, well woman exams, testosterone therapy, minor procedures, and pediatric consultations.

She is sensitive to the uniqueness of each patient's situation, and she adapts her consultations and treatment options appropriately to accommodate individual needs and concerns. She believes in listening to each patient and creating a partnership to maintain and improve lifelong health.

Besides caring for patients, Maryline enjoys spending time with her family and gardening. She has two dogs, and they, too, like to help in her garden, especially when they decide to sample a few of her vegetables. Maryline has a wonderful husband and three beautiful kids.

She is currently accepting new patients.

Reference:

Karan Staggers is a board-certified Family Nurse Practitioner (FNP-C). She is a graduate of Olivet Nazarene University College of Nursing (BSN) and Walden University (MSN in Nursing) specializing in Family Nurse Practitioner. Karan is associated with A.L.M.S. Community Health Center, Inc in Grand Prairie, Texas where she is actively practicing as an FNP-C. Karan has been in nursing for greater than 25 years specializing in pediatric nursing, critical care nursing, and emergency medicine. She has been recognized as a Sigma Theta Tau international member for nurses. She was awarded the P.R.I.D.E. (Participation, Respect, Integrity, Diversity and Excellence) Values award for nursing by the University of Chicago Hospital in Chicago, Illinois for excellence in nursing. She has had a career interest in the health and well-being of the family since her inception of her career. Her focus is identifying disease, managing chronic illness, and educating patients about their health.