Dr. Raymond T. Chung, MD

Dr. Chung practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.

Dr. Chung's NPI, 1154311769, was assigned on October 25, 2005. Dr. Chung graduated from Yale School of Medicine in 1986. Dr. Chung's Massachusetts license number on file is 70376.

Dr. Chung's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.

Dr. Chung's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Chung is also affiliated with Brigham and Women's Hospital. The medical group on file is Massachusetts General Hospital. Dmand AI also links Dr. Chung to 3 more hospitals, 2 medical groups and 1 community health center, each named with a free account. Dr. Chung's employer is on file too: a hospital.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chung practices, 6 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Chung's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Chung is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Chung has a license on file in Massachusetts.

Dmand AI lists acid reflux, cirrhosis of the liver, colonoscopy, fatty liver, gastroenteritis, hepatitis c and upper GI endoscopy among the conditions Dr. Chung treats.

CMS data shows 701 Medicare services from Dr. Chung across 10 procedure codes in 2024, for 445 Medicare patients. Medicare paid $40,952 for them.

CMS counts 445 Medicare patients who saw Dr. Chung in 2024. The largest group is 65 to 74, with 230 patients. 69% of them have high blood pressure, and 67% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.61, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Chung's median patient age at 71, with 59% women.

In 2024, Dr. Chung wrote 712 Medicare Part D claims for 179 patients. 80% of them were for generic drugs. CMS names the drug for 583 of them, across 20 drugs with 11 or more claims each, at $288,421 in total drug cost. In 2023, CMS named 362 claims across 12 drugs.

Dr. Chung accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chung as offering telehealth. CMS counts 38 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Chung, more than 59% of the clinicians it reports for that procedure.

Dmand AI links 608 papers to Dr. Chung, published from 2002 to 2025. 2017 was the busiest year, with 32. The most frequent topics are Hepacivirus, Antiviral Agents and Hepatitis C. Dr. Chung has published most often in Hepatology. Dr. Chung's most frequent co-authors are Arthur Yu Shin Kim, MD, Tracey G. Simon, MD and David Erwin Kleiner, MD, PhD.

Dmand AI links Dr. Chung to 16 clinical trials, 8 of them phase 4 studies. 1 is still active or recruiting. Conditions studied include Hepatitis C, Flaviviridae Infections and Hepatitis C, Chronic. Massachusetts General Hospital sponsors the most, 7.

CMS Open Payments shows 21 general payments to Dr. Chung from 10 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 95% of the total. GlaxoSmithKline, LLC. paid the most, $17,600. It also lists 4 research payments totaling $1,982 from 2017 to 2022.

Dmand AI lists 1 award for Dr. Chung, most recently America's Top Doctors in 2014.

Dr. Chung graduated from Yale School of Medicine in 1986.

Dr. Chung is in network with 13 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.