Our Founder

Dr. S. Paul Sharma

Dr. S. Paul Sharma was more than a physician; he was a beacon of hope, a healer of bodies and souls, and a tireless advocate for his patients. His legacy is one of excellence, empathy, and an unyielding drive to make the world a healthier and happier place.

With a career that spanned decades, Dr. Sharma's impact reached far and wide. His contributions to the medical field, from his early days at M.D. Government Medical College in Amritsar, Punjab, India, to his groundbreaking work in Gastroenterology at Naval Regional Medical Center in San Diego, were nothing short of extraordinary.

As the founder of Citrus Valley Gastroenterology, he nurtured an environment of innovation and compassion, leaving an indelible mark on the institution and its patients. His legacy lives on through the countless lives he saved, the knowledge he shared, and the inspiration he provided to those fortunate enough to work with him.

His untimely passing on June 26, 2023, marks a profound loss to the medical world and all whose lives he touched. Dr. Sharma's dedication, compassion, and unwavering commitment to the betterment of humanity through medicine will forever be remembered and cherished. We remember and celebrate his life by continuing his mission of healing, caring, and making the world a better place.

OUR DOCTORS



Osama A Sidhom, M.D.

Dr. Sidhom has been practicing medicine for over 30 years. He graduated as a doctor in medicine in 1984 from Alexandria University, Faculty of Medicine in Alexandra, Egypt. He then completed his internal medicine internship at Grant Hospital of Chicago and Residency in Internal Medicine at Robert Wood Johnson Medical School in New Brunswick, New Jersey. Dr. Sidhom also completed a fellowship in Clinical Pharmacology at Northwestern University Medical School in Chicago, Illinois. He later completed his Gastroenterology and Therapeutic Biliary Endoscopy fellowships at University of Southern California in Los Angeles, California. In his free time, Dr. Sidhom enjoys spending time with his family, traveling, and keeping active. Dr Sidhom plays in a weekly tennis match with other local physicians, and is quite formidable.

Meet Dr. Osama A Sidhom, M.D.

Sartaj M Arora, M.D.

Dr. Arora has been practicing medicine for over 20 years. He graduated with his Bachelor of Science in Biochemistry at University of California Los Angeles (UCLA), Los Angeles, California. In 1999, Dr. Arora graduated as a medical doctor from the University of California, San Diego in San Diego, CA. He then completed his Internal Medicine residency in 2002 at Los Angeles County-Harbor-UCLA Medical Center, Torrance, CA. Dr. Arora completed his fellowship in Gastroenterology at the Harbor location of the UCLA David Geffen School of Medicine in 2005. Dr. Arora enjoys spending time with his family, and in his free time and enjoys hiking and running marathons.

Meet Dr. Sartaj M Arora, M.D.

Patrick Troung, M.D.

Dr. Truong has been practicing medicine for over 10 years. He graduated from the University of California, Irvine (UCI) with a Bachelor of Science in Biological Science. In 2003, Dr. Truong also received his medical degree from UCI College of Medicine. Dr. Truong completed his surgical internship at the University of Bern, Switzerland. Dr. Truong completed his Internal Medicine Residency at Cedars Sinai Medical Center, Los Angeles, CA in 2006. Finally, he completed his Gastroenterology fellowship at the University of California, Irvine in 2009. Dr. Truong is very family centered and enjoys spending time with his three kids in his free time. He has hobbies such as cooking, driving, and trying out new hot spot restaurants.

Meet Dr. Patrick Troung, M.D.

George Ferenczi, M.D.

Dr Ferenczi has been practicing medicine for over 30 years. He graduated from Tulane University School of Medicine in New Orleans, Louisiana with his doctoral degree in medicine in 1972. He then completed his residency in internal medicine at LAC & USC Medical Center in Los Angeles, CA in 1975. In 1975, Dr. Ferenczi completed his fellowship in Gastroenterology at LAC & USC Medical Center. In his spare time, Dr Ferenczi enjoys visiting his son and grandkids in France, and spending time with his close friends. One of Dr Ferenczi’s favorite foods is chocolate cake. 

Meet Dr. George Ferenczi, M.D.

Adam J Snyder, M.D.

Dr. Snyder has been practicing medicine for over 10 years. Dr. Snyder completed his undergraduate education at the University of California Los Angeles (UCLA). He graduated as a medical doctor in 2011 from the NYU School of Medicine in New York City, New York. Dr. Snyder completed his Internal Medicine Residency at the Langone NYU School of Medicine. He then moved back home to California and completed his fellowship in Gastroenterology at University of California, Irvine (UCI). In his free time, Dr. Snyder enjoys spending time with his family, snowboarding, hiking, and fishing. Dr. Snyder also dedicates time to travel to Cambodia with a medical mission to teach Cambodian physicians how to perform successful ERCP (Endoscopic retrograde cholangiopancreatography).

Meet Dr. Adam J Snyder, M.D.

Ankush Sharma, M.D.

Dr. Sharma has been practicing medicine for over 10 years. He completed his undergraduate education from University of Southern California in Los Angeles, CA. In 2008, he graduated with his medical degree at the American University of the Caribbean School of Medicine in Cupecoy, Saint Maarten. He completed his residency in Internal Medicine at the Lehigh Valley Hospital Network/Pennsylvania State University Program Allentown, Pennsylvania in 2011. He later completed his fellowship in gastroenterology in 2018 at Wright State University in Dayton, Ohio. Dr. Sharma is family oriented and enjoys hobbies such as teaching youth basketball, hanging out with his twin boys, and watching Laker games.

Meet Dr. Ankush Sharma, M.D.

Yi-Chia (Jasmine) Wu M.D.

Dr. Yi-Chia Wu has been a practicing gastroenterologist for the last 10 years. She received her medical degree from Medical College of Wisconsin and has been is licensed here in California and New Jersey . Dr Wu specializes in treating problems of the esophagus, stomach, pancreas, gallbladder, liver and intestines. Dr Wu is board certified by the American Board of Internal Medicine and Gastroenterology.

Meet Dr. Yi-Chia (Jasmine) Wu M.D.

About Us

Site Map

Contact Us

  • Covina Location

    500 W. San Bernardino Rd, Suite B Covina, CA 91722

    (626) 960-2326

  • Glendora Location

    415 W. Route 66, Suite 102 Glendora, CA 91740

    (626) 610-2112

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