Jaime Chavarria, MD. Chief Medical Officer
Dr. Jaime Chavarria has been in family practice for over 18 years. He was Chief Resident at the Family Practice department at University of Southern California/California Medical Center and received his Medical Degree at the University of California, San Diego, Medical School. From 1994 to 2002, he worked with the San Jose Medical Center and prior to that he worked in a four family-physician medial group in Los Angeles that served a multi-cultural population. He served as a faculty member and preceptor for the University of Southern California School of Medicine, Family Practice Program at California Medical Center, and was a part-time faculty member at the Whittier Family Practice Program. He is very interested in redesigning health care to be more patient centric, efficient, effective and in working more closely with clinical partners to coordinate care and community groups to address the social determinants of health.
Jaclyn Czaja, MD. Associate Medical Director, Pediatrics
Dr. Jaclyn Czaja completed medical training at the University of Michigan’s Medical School in 2007, followed by a three year pediatric residency at the University of Washington in Seattle. In addition to hospital duties, she worked with an inner city, and largely immigrant, population at the Harborview Children and Teen’s clinic. During her residency, she also participated in Seattle Children’s Global Health Pathway; working on a pediatric ward assessing the chronically ill children in Kisii, Kenya. Dr. Czaja is a Stanford graduate with a Bachelor of Arts degree in Human Biology.
Jeremiah Davis, MD. Pediatrician
Dr. Davis earned his medical degree at The George Washington University in Washington D.C., and went on to complete his pediatric residency at Seattle Children’s Hospital, University of Washington. His passion is working in underserved communities and addressing the healthcare needs of pediatric patients. Prior to joining Ravenswood’s team of providers, Dr. Davis worked at another Federally Qualified Health Center (FQHC) in Bend, Oregon. When he is not at Ravenswood, Dr. Davis likes rock climbing, skiing and snowboarding, backpacking, camping and traveling with this wife. He is also an avid reader and enjoys sitting down with a good book.
Sharon DiPierro, MD. Pediatrician
Dr. Sharon DiPierro earned both her undergraduate degree in Community Health and her MD with a focus on Advocacy and Activism at Brown University, where she worked with homeless individuals and at-risk teens. After completing her pediatric residency at the University of California at Davis, she joined the RFHC team in 2013. In addition to her clinical duties at RFHC, she has enjoyed teaching Stanford pediatric residents. She loves hiking, gardening, the San Francisco Giants, and singing and dancing with her son Leo.
Shadia Karim, MD. Family Medicine
Shadia Karim, MD was born and raised in New York. She completed her studies on the east coast, receiving her medical degree from Geisel School of Medicine in 2016, before traveling west to Ventura, California to complete residency in full-spectrum family medicine. Her clinical interests include women’s health, dermatology, and global health. She was drawn to Ravenswood because of the staff’s passion and commitment to providing the best care to their patients, regardless of age, gender, race, or socioeconomic status.
In her spare time, she enjoys traveling, exercising, reading and writing, listening to music, and spending time with family and friends.
Diana Mokaya, MD. Associate Medical Director, Family Practice
Alma Sanchez, MD. Family Practice Physician
Dr. Alma Sanchez grew up locally in Hollister, California. She went to Duke University for undergrad where she studied Biology, Spanish, and Latin American Studies, cultivated her passion for social justice, and fell in love with rugby. She earned her medical and public health degrees at Tulane School of Medicine in New Orleans, and then completed her family medicine residency at UCSF in 2018. Before going into medicine, Dr. Sanchez was a high school teacher in the Dominican Republic, and later managed a Domestic Violence shelter for women and children in California. She is open to all patients, with a special interest in women’s health.
Sonia Santana, MD, OB/GYN. Associate Medical Director, Women’s Health
Dr. Sonia Santana was born in Bogota, Colombia and immigrated to the United States in 1987. She completed medical school at York College of Osteopathic Medicine in Old Westbury, New York in 2001 and finished her OB/GYN residency at Francis Hospital and Medical Center in Hartford, Connecticut in 2005. Dr. Santana worked in private practice in the East Bay before joining RFHC in 2015. She is also a fellow of the American College of Obstetrics and Gynecology. Dr. Santana has a passion for women’s health and is results-driven in her practice. Her goal is to provide the highest quality care to effectively meet the needs of her patients. In her practice, she emphasizes educating her patients on self-management while involving their families and the community which are at the heart of RFHC’s mission.
Jonathan Shaw, MD. Family Practice Physician
Dr. Jonathan Shaw earned his medical degree from Harvard Medical School, and spent a year during his studies doing research in Guatemala. He completed his family medicine training at Oregon Health & Sciences University, then provided community-based maternal, infant, pediatric, and adult care to a diverse patient population in Hillsboro, Oregon. Most recently, he completed a research fellowship at Stanford University and the Palo Alto VA to gain training in evaluating health services, focusing on the interaction of psychosocial factors and health.
Reshma Thadani, MD, MPH. Pediatrician
Dr. Reshma Thadani received her B.A. in Child Psychology and Spanish from Tufts University. She then completed her MPH in Population and Family Health at Columbia University. She received her medical degree from Drexel University College of Medicine, and completed her pediatric residency at Children’s Hospital and Research Center Oakland in 2006. Prior to joining RFHC in 2008, Dr. Thadani worked for two years at Bancroft Pediatric Medical Group in San Leandro. She is on the general pediatrics faculty at the Stanford University School of Medicine, and is involved in precepting Stanford pediatric residents. She is passionate about her work on initiatives to improve school readiness in children.
Julia Tse, MD. Family Medicine
Dr. Tse grew up in New York City. She received her medical degree from Georgetown University in Washington, DC and then completed a four year residency in Family Medicine where she developed a special focus in Women’s Health. She provides medical care for patients of all ages including pregnant women, and provides gender affirming care for transgender patients and treatment for opioid misuse disorder.