Providers

Ulin Sargeant, MD, MPH, is a leading internist and founder of Monrovia Internal Medicine & Primary Care in Duarte, California. Dr. Sargeant is a leading pioneer in the rapidly growing field of telemedicine, a firm believer in optimum patient experience, and an innovator in making medical pricing more transparent and affordable.

Dr. Sargeant received her undergraduate degree from the University of Southern California, as well as a master’s degree in public health from Boston University, where she focused on access to health care and public health law. These studies and her passion for healing others led Dr. Sargeant to Temple University School of Medicine, where she received her medical degree and the Dean’s Award. She then completed a residency in internal medicine at Yale University, where she was awarded the Gary Vernon Humanitarian Award. She is a member of both the American Medical Association and the American Telemedicine Association.

Dr. Sargeant is a pioneer in the field of telemedicine as part of her effort to create a patients-first practice with low wait times and stellar patient satisfaction. Whether you need a visit with urgent care or a virtual appointment made right from your home, you can connect with Dr. Sargeant and her staff promptly for a thorough, attentive evaluation. Dr. Sargeant is also a big believer in “menu-izing” health care, a process that lowers costs to the patients through compartmentalized, transparent pricing structures. Dr. Sargeant speaks Spanish and accepts many forms of insurance and a wide range of HMOs.

I like to think of myself as a clinician and patient advocate, striving for quality patient care in a manner that will maintain the well-being of patients in the short as well as long term. In an ever-so-busy and changing medical field, I find the most important part of being a physician is being able to listen to the patient in order to address his/her needs. Whether it is acute or chronic medical concerns, being able to simply listen to the patient will allow for correct diagnosis and medical management. I pride myself in doing just that. Aside from being a physician, I am a family-oriented individual and enjoy spending time with my lovely fiancé and big family. 

Dr. Bob Chiang, MD is trained and board certified in Family Practice and Palliative Care with training in Internal Medicine and Hospital Medicine.  He has over 20 years experience as a clinician and manages other offices in Moreno Valley, CA and Riverside, CA. Dr. Chiang is also affiliated with Riverside University Health System.

Dr. Sujay Dayal, D.O., is a compassionate and dedicated licensed and board certified Internal Medicine physician who is committed to providing exceptional, patient-centered care. After completing his Internal Medicine residency at the University of California, San Francisco–Fresno, Dr. Dayal is pursuing advanced fellowship training in Sleep Medicine at New York University Long Island, where he is gaining specialized expertise in diagnosing and treating a wide range of sleep disorders, including sleep apnea, insomnia, excessive daytime sleepiness, restless legs syndrome, parasomnias, and other conditions that can significantly affect overall health and quality of life.

Throughout his medical training, Dr. Dayal cared for patients from diverse backgrounds, including veterans, underserved communities, and individuals with complex medical needs. His osteopathic medical education emphasized treating the whole person, allowing him to develop a thoughtful, compassionate approach that considers each patient's unique medical history, lifestyle, and personal goals. He is known for taking the time to listen carefully, explain medical conditions in understandable terms, and partner with patients to develop individualized treatment plans.

In addition to his clinical training, Dr. Dayal has authored and contributed to research in sleep medicine, infectious diseases, neurology, palliative care, and autoimmune disorders, reflecting his commitment to lifelong learning and evidence-based medicine. His volunteer service caring for homeless individuals, hospice patients, and communities affected by COVID-19 further demonstrates his dedication to improving the lives of others through compassionate service.

Whether helping patients manage chronic medical conditions or achieve healthier, more restorative sleep, Dr. Dayal is committed to delivering comprehensive, personalized care that empowers patients to enjoy healthier, more fulfilling lives.

Jennifer comes to us with an education from UC Berkeley and the Western University of Health Sciences in Pomona, CA.  She has worked in Immunology research and has authored publications  on the inflammation pathway during severe sepsis.  Prior to pursuing a traditional career in medicine, Jennifer served patients as a licensed acupuncturist. 

Jennifer is well-versed in disease prevention and health screening and is proactive in seeking out patients who are in need of screening exams.