# Citrus Valley Gastroenterology > Citrus Valley Gastroenterology (CV Gastro) is a multi-location gastroenterology practice serving patients in Covina, Glendora, and Chino, California. The practice offers comprehensive diagnosis and treatment of digestive conditions, advanced endoscopic procedures, and preventive GI care. Founded by Dr. S. Paul Sharma, the group is staffed by board-certified gastroenterologists and emphasizes personalized, evidence-based, compassionate care. ## Practice Overview Citrus Valley Gastroenterology provides expert care for a full spectrum of gastrointestinal conditions affecting the esophagus, stomach, intestines, liver, gallbladder, pancreas, and colon. The practice operates three clinic locations in the San Gabriel Valley / Inland Empire region of Southern California. Both in-person and virtual appointments are available. Most major PPO and HMO insurance plans are accepted. - **Phone (Covina & Chino):** (626) 960-2326 - **Phone (Glendora):** (626) 610-2112 - **Fax:** (626) 610-2119 - **Medical Records Email:** medicalrecords@cvgastro.com (allow 7–10 business days) - **Website:** https://cvgastro.com - **Office Hours:** Monday–Friday, 8 AM – 5 PM (hours may vary by location) ## Locations - **Covina:** 500 W. San Bernardino Rd, Suite B, Covina, CA 91722 — (626) 960-2326 - **Glendora:** 415 W. Route 66, Suite 102, Glendora, CA 91740 — (626) 610-2112 - **Chino:** 5632 Philadelphia Street, Suite 203–204, Chino, CA 91710 — (626) 960-2326 ## Providers - [Providers & Founder Overview](https://cvgastro.com/providers/dr-s-paul-sharma): Information about the founding physician Dr. S. Paul Sharma and all current GI doctors. **Current Physicians** - **Osama A. Sidhom, M.D.** – 30+ years of experience; trained at Alexandria University, Grant Hospital of Chicago, Robert Wood Johnson Medical School, Northwestern University (Clinical Pharmacology fellowship), and USC (Gastroenterology & Therapeutic Biliary Endoscopy fellowships). - **Sartaj M. Arora, M.D.** – 20+ years of experience; UCLA (B.S. Biochemistry), UCSD School of Medicine (M.D.), LA County Harbor-UCLA (Internal Medicine residency), UCLA David Geffen School of Medicine Harbor (Gastroenterology fellowship). Specializes in accurate diagnosis, personalized treatment, and long-term digestive wellness. - **Patrick Truong, M.D.** – 10+ years of experience; UC Irvine (B.S. & M.D.), surgical internship at University of Bern (Switzerland), Cedars-Sinai Medical Center (Internal Medicine residency), UC Irvine (Gastroenterology fellowship). - **Adam J. Snyder, M.D.** – 10+ years of experience; passionate about colon cancer prevention, inflammatory bowel disease, liver cirrhosis, GERD, and IBS. Participates in international medical outreach (e.g., Cambodia). - **Ankush Sharma, M.D.** – 10+ years of experience; board-certified gastroenterologist in Covina; specializes in IBD, GI bleeding, colonoscopy, colon cancer prevention, and advanced digestive care. - **Yi-Chia Wu, M.D.** – Board-certified gastroenterologist; trained at Icahn School of Medicine at Mount Sinai Beth Israel (NY) and Saint Peter's University Hospital/Rutgers Robert Wood Johnson Medical School (NJ). Specializes in functional GI disorders, IBS, GERD, IBD, and liver disease. Emphasizes patient education and individualized care. - **Syed Mohsin Saghir, M.D.** – Board-certified in Internal Medicine and Gastroenterology; Ross University School of Medicine (M.D., honors); UNLV (Internal Medicine residency, Resident of the Year 2020); Creighton University (Gastroenterology fellowship). Multilingual (English, Urdu). Published in peer-reviewed GI journals. **Founder** **Dr. S. Paul Sharma** (1940s–June 26, 2023) – Founder of Citrus Valley Gastroenterology. Trained at M.D. Government Medical College, Amritsar, India, and Naval Regional Medical Center, San Diego. His legacy of excellence, empathy, and innovation continues to guide the practice. ## Conditions Treated - [Conditions Overview](https://cvgastro.com/conditions): Full list of GI conditions managed by the practice. Conditions include: GERD (acid reflux / heartburn), Abdominal Pain, Gallstones, Cirrhosis / Fatty Liver, Ulcers, Hemorrhoids, Colon Cancer Screening, Jaundice, Constipation, Ulcerative Colitis, Crohn's Disease, Rectal Bleeding, Irritable Bowel Syndrome (IBS), Barrett's Esophagus, Liver Disease / Abnormal Liver Tests, Colon Polyps, Bloating and Digestive Discomfort. ## Procedures - [Procedures Overview](https://cvgastro.com/procedure): Details on all in-office and hospital-based procedures. Procedures offered include: - **Colonoscopy** – Colon cancer screening, surveillance, and polyp removal. - **EGD (Upper Endoscopy)** – Diagnosis and treatment of upper GI conditions. - **ERCP (Endoscopic Retrograde Cholangiopancreatography)** – Advanced biliary and pancreatic procedure. - **Capsule Endoscopy** – Non-invasive small bowel imaging (PillCam). - **IV Infusions** – Infusion therapy for GI conditions. - **Hemorrhoidal Banding** – Non-surgical treatment for hemorrhoids. - Diagnostic biopsies and other advanced endoscopic procedures as medically indicated. ## Appointments - [Request an Appointment](https://cvgastro.com/appointment-page): Online appointment request form. Appointments can be requested online or by calling the office. Virtual and in-person visits are available. Insurance referral requirements vary by plan. The scheduling team assists with insurance verification and referrals. Patients should bring: photo ID, insurance card, referral (if required), current medication list, and relevant medical records. ## Patient Resources - [Patient Resources](https://cvgastro.com/patient-resources): Forms, prep instructions, and portal access. Available resources include: - Patient intake forms (English and Spanish) - Colonoscopy prep instructions (English and Spanish) - Capsule endoscopy (PillCam) prep instructions - Endoscopy preparation and flex sigmoidoscopy instruction forms (English and Spanish) - Direct Colonoscopy Form - Medical Release Forms (English and Spanish) - Hepatoscope Chart - Patient Portal access ## Insurance CV Gastro accepts most major PPO and HMO insurance plans and works with many medical groups and IPAs. Insurance participation may vary by provider and location. Patients are advised to contact the office to confirm coverage prior to their visit. ## FAQs - [Frequently Asked Questions](https://cvgastro.com/faqs): Common questions about care, scheduling, insurance, and procedures. ## About the Practice - [Our Practice](https://cvgastro.com/about): Background on Citrus Valley Gastroenterology's mission and history. - [Testimonials](https://cvgastro.com/testimonials): Patient reviews and feedback. - [Blogs](https://cvgastro.com/blogs): Educational articles on digestive health topics. - [Media Resources & Instructional Videos](https://cvgastro.com/patient-resources): Educational videos and media. ## Legal & Policies - [Patient Privacy Policy](https://cvgastro.com/patient-privacy-policy) - [Disclaimer](https://cvgastro.com/disclaimer) - [Notice of Non-Discrimination](https://cvgastro.com/notice-of-non-discrimination)