Western University of Health Sciences Western University of Health Sciences
WesternU Patient Care Center

Meet Our Team
Medical Center

Make an Appointment or call (909) 865-2565

Meet Our Medical Center Team at the Patient Care Centers, Pomona and Rancho Cucamonga


Robert Warren, DO
Chief Medical Officer
Assistant Professor of Family Medicine, College of Osteopathic Medicine of the Pacific

Rob Warren DO is a Board Certified Family Physician. He completed his residency training at Scott and White/Texas A&M and medical school at Western University of Health Sciences. Dr. Warren has practiced in ambulatory, hospital and ER settings. He is a patient advocate and also is dedicated to training future health care professionals. Dr. Warren serves as medical director and is a leader in the transformation of the health care industry.


David Connett, DO
College of Osteopathic Medicine of the Pacific Professor of Family Medicine Rancho Cucamonga and Pomona Medical Centers

I am Dr. David Connett who is Board Certified Fellowship trained Family Medicine Physician who has been in clinical practice for 27 years. In addition to Family Medicine I have also practiced Emergency Medicine and was a US Air Force Flight Surgeon. My clinical practice includes patients in all age spectrums to include children and the complicated geriatric patient, sports medicine, women’s care, although I no longer do obstetrical care. I have also had special training in the US Air Force to do advanced dermatological procedures and will do minor office based dermatological surgeries. My philosophy is to be a Family Physician that will sit down and listen to your concerns and be certain we provide you care consistent with the latest recommendations in the medical literature. I trained at Western University of Health Sciences – College of Osteopathic Medicine of the Pacific with Post Graduate training at the Chicago College of Osteopathic Medicine with Board Certification and Fellowship award with the American Board of Osteopathic Family Physicians. I currently practice in both the Pomona and Rancho Cucamonga Centers.


Alan Cundari, DO
Chair and Professor of Family Medicine Pomona Medical Center

Alan Cundari, D.O., graduated from Western University of Health Sciences, College of Osteopathic Medicine of the Pacific in 1985. He continued his post-graduate studies at the University and received his Masters of Science in Health Professions Education in 1992, and became board certified in family medicine in 1994. In addition to seeing patients in the clinic, Dr. Cundari also visits patients in group homes, works closely with student clubs, and is active in community events. Dr. Cundari is passionate about teaching, and was the recipient of the American Osteopathic Foundation Educator of the Year Award in 2012.


Firhana Khairullah, DO
Assistant Professor of Family Medicine – Rancho Cucamonga Medical Center

Dr. Firhana Z. Khairullah graduated from New York College of Osteopathic Medicine. She completed her training at Arrowhead Regional Medical Center in Colton, California, and is board certified in Family Medicine. Dr. Khairullah sees newborns to seniors, and is a strong believer of patient education and prevention. She believes staying healthy is about balance between physical health, as well as social and emotional health. Her interests include spending time with her family and friends, skiing, soccer, and traveling.


Dat Q. Trinh, DO
Assistant Professor of Family Medicine Pomona Medical Center

Dr. Dat Trinh is an alumnus of Western University of Health Sciences. He completed his training in Family Medicine at Arrowhead Regional Medical Center. Having trained at a county facility, Dr. Trinh is well qualified to handle complex cases. He also spent an extra year to complete an Undergraduate Teaching Fellowship in Osteopathic Manipulative Medicine prior to his residency training. Dr. Trinh is board certified in Family Medicine and Osteopathic Manipulative Treatment by the American Osteopathic Board of Family Physician. He is passionate about preventive care, minor office procedures, and osteopathic manipulative medicine.


Stephanie White, DO
Director, Clinical Education Assistant Professor of Family Medicine Pomona Medical Center

I am a Board Certified Family Medicine Physician who joined the Western University team in July 2010 after completing my Chief Residency at Arrowhead Regional Medical Center. I began my medical education at Philadelphia College of Osteopathic Medicine and moved to California in 2007 to be with my husband. I enthusiastically accept new patients all of ages in my practice and place special emphasis on women’s health and preventative medicine. I believe I work best in my role as a family physician when I form a strong partnership with my patients. Through frequent communication and realistic goal setting we can address any major health concern and prevent the development or progression of diseases. I am open to complementary and alternative medicine and look forward to finding the best treatment plan for you and your loved ones.


Ray Yutani, DO, PharmD
Associate Professor of Family Medicine Pomona Medical Center

bio coming soon


Nancy Alexander, P.A.
Clinical Instructor of Family Medicine Rancho Cucamonga and Pomona Medical Centers

Nancy Alexander is a physician assistant who graduated from Western University of Health Sciences and has been in practice for 13 years. She is experienced in internal medicine with extensive experience treating diabetes as well as thyroid disorders and family medicine with patient ages ranging from newborns to over 100 years old. She also has experience working in acute long term care hospitals, nursing homes, and urgent care facilities. She emphasizes patient education believing that the more you know, the more you’ll do, the better you’ll feel.


Trang Sparks, PA-C
Clinical Instructor of Family Medicine Pomona Medical Center

As a Primary Care Physician Assistant, I am committed to my patients’ overall well being, emphasizing preventive health and establishing continuity of care. I believe that creating a partnership between healthcare provider and patient is an integral part of decision making in an individual’s health care. I hope to help my patients realize their goals of personal improvement in their health and lives through open communication, education and empathy.


Michael Seffinger, DO
Chair and Associate Professor of Family Medicine Dept of NMM/OMM Pomona Medical Center

I am a Board Certified osteopathic family physician who specializes in neuromusculoskeletal medicine and osteopathic manipulative medicine. I offer patients with pain syndromes, scoliosis and other spinal problems, joint problems, movement disorders or organic diseases a wide array of traditional and modern osteopathic manipulative medicine approaches for patients of all ages. The goal of treatment is to restore motion and function throughout the body and enable each patient to realize his or her maximum health potential. I am a recognized expert in this field, and participate in clinical trials, teach medical students and write evidence based textbooks on osteopathic medicine. I have practiced osteopathic family medicine since 1988, giving me a strong medical foundation from which to manage patients who suffer from chronic medical conditions. I evaluate patients with a complete history and a focused structural examination of the neuromusculoskeletal system, review or order necessary radiological and laboratory tests, arrive at a medical diagnosis and develop a management plan. I integrate management for the neuromuscular components of the problems found with medical and surgical management provided by other specialists selected by the patient.


Rebecca Giusti, DO
Assistant Professor of Family Medicine Dept of NMM/OMM Pomona Medical Center

Dr. Giusti is double Board Certified in Family Practice and NMM/ OMM. She is also certified through the Cranial Academy. She is active as a fitness instructor and as yoga instructor and brings those elements of health into her clinical practice. Dr. Giusti enjoys traveling and is involved in the nonprofit organization Amrit Davaa World Health in which she travels annually to Tawang, India to deliver healthcare to the people of that region. Having grown up overseas she appreciates a multicultural diverse patient population. Dr. Giusti uses a wide range of techniques that enable her to treat a wide range of patients from newborns to patients who are 109 years young.


Brian Loveless, DO
Assistant Professor of Family Medicine Dept of NMM/OMM Pomona Medical Center

Dr. Loveless has an Osteopathic family practice, utilizing Osteopathic principles to manage a whole spectrum of health problems. Osteopathic principles focus on finding and accentuating healthy processes in the body through nutrition, exercise, and manipulation to improve health rather than combat disease. He has a particular interest in treatment of pregnancy and newborn problems, including back pain, swelling, abnormal uterine position, breastfeeding, and colic. His own family life emphasizes natural health, including homebirth, extended breastfeeding, and attachment parenting. He is a 2002 graduate of COMP, and completed his Family Practice residency at Chino Valley Medical Center.


Mary Ann Magoun, DO
Assistant Professor of Family Medicine Dept of NMM/OMM and Pediatrics Pomona Medical Center

Dr. Magoun is a 2001 graduate of COMP, Western University of Health Sciences. After completing a pre-doctoral teaching fellowship in Osteopathic Manipulative Medicine, she went on to do a pediatric residency at Loma Linda University Children’s Hospital. She stayed on as an Attending Physician in the department of Pediatrics and helped found the Pediatric Chronic Pain and Headache Clinic in the department of Pediatric Neurology. As a mother of five and a professional ballet dancer, she has devoted her life to children and their care, maximizing each child’s unique potential.


David Redding, DO
Associate Professor of Family Medicine Dept of NMM/OMM Pomona Medical Center

I am a Board Certified osteopathic family physician who specializes in neuromusculoskeletal medicine and osteopathic manipulative medicine. My medical background includes being a physical therapist for 31 years and extensive training in holistic medicine. I have managed a “Back Pain Program” at Downey hospital and worked in the “Pain management program” at Casa Colina hospital before entering medical school. I work with all ages and with most medical conditions with an emphasis on but not limited to the musculoskeletal system. I work with both acute and chronic conditions.


Jesus Sanchez, DO
Assistant Professor of Family Medicine Dept of NMM/OMM Pomona Medical Center

bio coming soon


Lisa Warren, DO
Assistant Professor of Pediatrics Pomona Medical Center

Dr. Lisa Warren, DO is a Board Certified Pediatrician who cares for children from birth to 18 years of age. She completed her specialty training at Scott & White/Texas A&M and practiced there for 10 years before coming to Western University. Her passion is to establish a medical home for all children and provide excellent preventive care and take care of those who are sick. She enjoys working with diverse populations and is fluent in Spanish.


Marcel P. Fraix, DO
Assistant Professor, Departments of Physical Medicine, Rehabilitation and OMM/NMM Pomona Medical Center

Dr. Fraix joins WesternU from U.C. Davis Medical Center, where he completed his medical residency training in Physical Medicine and Rehabilitation (PMR). He is board certified in PMR as well as Neuromusculoskeletal and Osteopathic Manipulative Medicine (NMM/OMM). As a PMR physician he provides integrated care for patients with musculoskeletal disorders, including low back pain and sports related injuries, and those who have rehabilitative needs due to spinal cord injury, traumatic brain injury or stroke. His approach to patient care looks at the whole person and not just one symptom or condition. He is also actively involved in heading clinical research at WesternU and the education of medical students and resident physicians.


Emmanuel Katsaros, DO
Chair and Associate Professor of Internal Medicine Pomona Medical Center

Dr. Emmanuel Katsaros is an associate professor of medicine and chair of the Department of Internal Medicine at Western University of Health Sciences College of Osteopathic Medicine of the Pacific. He earned his Doctorate of Osteopathic Medicine from Midwestern University Chicago College of Osteopathic Medicine after graduating from the University of Southern California with a degree in psychology. After completing an osteopathic rotating internship at San Bernardino County Hospital, he went on to complete his internal medicine residency and fellowship in rheumatology at Loma Linda University Medical Center. Dr. Katsaros practiced rheumatology for three years in a multi-specialty group in Claremont California before returning to Loma Linda University, where he was associate professor of medicine, fellowship program director and associate division chief of clinical operations for Rheumatology. He is an active member of the Arthritis Foundation, where he served as chair of the Public Health Committee for the Pacific Region and is currently the program chair for the Southern California Rheumatology Society. His research interest has been in the psychosocial aspects of rheumatic diseases and their effect on patient reported outcomes. He continues to practice rheumatology at the Western University of Health Sciences Patient Care Center and at Riverside County Regional Medical Center.


Nishita Patel, MD, FACP
Assistant Professor of Internal Medicine, Division of Infectious Disease

Dr. Nishita Patel is a Board Certified Fellowship trained Infectious Disease Physician. She completed her infectious Diseases fellowship at Tulane University, New Orleans. She has been providing specialized care for patient with HIV, diabetic foot infection, Tb infection and other complicated infections which do not respond to usual antibiotics. She also had special training in Tropical and travel medicine to provide individualized care for persons traveling internationally, her special focus is to prevent infection in traveler by protecting them with vaccinations and providing appropriate care if they become sick after returning home. Her philosophy is to listen to the patients and to provide the best patient care consistent with the latest recommendations in the medical literature.