Philip O. Bauman, M.D.
Loan Bui-Thompson, D.O.
Christine Y. Chan, M.D.
James D. Costello, P.A.
Ronald Goldman, M.D.
Luyen D. Pham, M.D.
William Spangler, M.D.
Scott Yang, M.D.
Philip O. Bauman, M.D. Dr. Bauman received his Bachelor’s degree in Biological Sciences with a minor in Chemistry from California State University, Fresno in 1995. He attended the University of California Davis School of Medicine, graduating with his Doctor of Medicine degree in 1999. He completed his pediatric residency at Columbus Children’s Hospital in Columbus, Ohio in 2002 and began practicing with Valley Oak Pediatric Associates the same year. Dr. Bauman was born and raised in Modesto, California. He is a Fellow of the American Academy of Pediatrics and is a Diplomate of the American Board of Pediatrics.
Loan Bui-Thomspon, D.O. Dr. Bui-Thompson received her Bachelor of Science degree in Biology from Drake University in Des Moines, Iowa in 1993. She attended the University of Osteopathic Medicine and Health Science in Des Moines, Iowa graduating with a Doctor of Medicine in 1997. She completed her pediatric residency at Henry Ford Hospital in Detroit, Michigan in 2001 and was Chief Resident from 2001-2002. She practiced pediatrics in Modesto and Stockton prior to joining Valley Oak Pediatrics Associates in 2012. She is Board Certified with the AMerican Osteopathic Board of Pediatrics. She is fluent in Vietnamese.
Christine Y. Chan, M.D. Dr. Chan received her Bachelor of Science degree in Biology from Boston College in Massachusetts in 1994. She then pursued her graduate study at Columbia University in New York and obtained her Master of Science degree in Nutrition in 1997. Afterward she attended St. George’s University, School of Medicine in Grenada, West Indies, graduating with her Doctor of Medicine in 2002. She completed her pediatric internship and residency at Nassau University Medical Center in NY in 2005 and continued on as Chief Resident from 2005-2006. She began practicing with Valley Oak Pediatric Associates in September, 2006.
James D. Costello, P.A. Mr. Costello received his Bachelor of Arts degree in Psychology from California State University, San Francisco in 1970. He completed premedical studies in 1977 at California State University, Stanislaus and graduated from the Stanford Primary Care Associate Program in 1980. Mr. Costello also received a Master of Arts degree in English from California State University, Stanislaus in 1987. Before coming to Valley Oak Pediatrics, Mr. Costello worked for 10 years in the Child Health program at the Stanislaus County Dept. of Public Health, and for 6 years in the Pediatric Clinic, Stanislaus Medical Center. He is licensed as a Physicians Assistant by the Physician Assistant Examining Committee of the Medical Board of California.
Ronald Goldman, M.D. Dr. Goldman received his Bachelor of Arts degree in Psychology at the University of California Berkeley, in 1966. He attended the University of California, Irvine, California College of Medicine and graduated with his M.D. degree in 1970. After an internship at Highland Alameda County Hospital in Oakland he did his pediatric residency at Children’s Hospital Medical Center in Oakland, California from 1971 to 1973. He practiced pediatrics in Sonora and Laguna Hills, California before coming to Modesto in 1983. He also has an interest in Neonatology and provides coverage for the Neonatal Intensive Care Unit at Memorial Hospital. He is a Fellow of the American Academy of Pediatrics and a Diplomate of the American Board of Pediatrics. Founder of Valley Oak Pediatrics, 1991.
Luyen D. Pham, M.D. Dr. Pham graduated from University of California San Diego with a Bachelor Science degree in 1995. He later attended Ohio State College of Medicine in Columbus, Ohio where he obtained his Medical Degree in 2000. He completed his internship and residency at Children’s Hospital Oklahoma. He is Board Certified with the American Academy of Pediatrics. He joined Valley Oak Pediatric Associates in September 2006. He is fluent in Vietnamese.
William Spangler, M.D. Dr. Spangler received his Bachelor of Science in Electrical Engineering in 1988 at Brigham Young University in Provo, Utah. He then spent several years working in aerospace and telecommunications in Southern California and Portland, Oregon before deciding to pursue a career in medicine. He graduated from MCP-Hahnemann University School of Medicine in Philadelphia, Pennsylvania in 2005. He returned to the west coast and practiced for several years in Sonora, then began practicing in Modesto with Kaiser Permanente in 2011. He joined Valley Oak Pediatrics Associates in 2013. He is a fellow of the American Academy of Pediatrics and a Diplomate of the American Board of Pediatrics.
Scott Yang, M.D. Dr. Yang received his Bachelor of Science degree in Biology from California Lutheran University in Thousand Oaks, CA in 1991. He attended the Medical College of Wisconsin in Milwaukee, Wisconsin and received his degree in Medicine in 1995. Dr. Yang completed his pediatric residency through the United States Air Force at Keesler Air Force Base in Biloxi, Mississippi in 1998. Afterwards he was stationed as the base pediatrician for 3 years at Kadena Air Base on the island of Okinawa, Japan. Prior to joining Valley Oak Pediatrics in Modesto, Dr. Yang was at Kaiser Permanente in both Northern and Southern California for 6 years and was the Assistant Chief of Pediatrics in Modesto. He joined Valley Oak Pediatric Associates in August of 2007. He is a fellow of the American Academy of Pediatrics and has a Diplomate of the American Board of Pediatrics and recertified in 2006.
Hours of Operation:
Mondays to Fridays: 8:30am to 5:30 pm
Evenings, Weekends and Holidays: By appointment Only
Valley Oak Pediatrics Modesto is open every day of the year.
All visits are by appointment only.
4120 Prescott Road • Modesto, CA 95356
Valley Oak Pediatrics Oakdale is open Monday through Fridays
1425 W. H St, #330, Oakdale CA 95361
Our Pediatric Providers
Modesto • Oakdale
This web site is not a substitute for medical care or your doctor's attention. If your child needs medical care, please seek the advice of your pediatrician or family doctor. The information furnished by Valley Oak Pediatric Associates and its physicians is of a general nature and is designed for educational purposes only. As each situation is unique, do not rely on this information for diagnosis and treatment.
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taking care of our growing community