Dr. Kathleen Viveiros, MD

Dr. Viveiros practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.

Dr. Viveiros' NPI, 1376664938, was assigned on April 2, 2007. Dr. Viveiros graduated from Warren Alpert Medical School of Brown University in 2001. Dr. Viveiros holds Massachusetts license 233922.

Dr. Viveiros' primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.

Dr. Viveiros' primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Viveiros is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Viveiros to 4 more hospitals, 2 medical groups and 1 hospital outpatient department, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Viveiros practices, 7 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Viveiros' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Viveiros is licensed in Massachusetts.

CMS data shows 598 Medicare services from Dr. Viveiros across 13 procedure codes in 2024, for 365 Medicare patients. Medicare paid $51,438 for them.

CMS counts 365 Medicare patients who saw Dr. Viveiros in 2024. The largest group is 65 to 74, with 197 patients. 73% of them have high cholesterol, and 72% have high blood pressure. 19% 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. Viveiros' median patient age at 66, with 61% women.

In 2024, Dr. Viveiros wrote 211 Medicare Part D claims for 100 patients. 94% of them were for generic drugs. CMS names the drug for 138 of them, across 5 drugs with 11 or more claims each, at $13,741 in total drug cost. In 2023, CMS named 90 claims across 2 drugs.

Dr. Viveiros accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Viveiros as offering telehealth. CMS counts 39 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Viveiros, more than 59% of the clinicians it reports for that procedure.

Dmand AI links 10 papers to Dr. Viveiros, published from 2012 to 2024. 2020 was the busiest year, with 4. The most frequent topics are COVID-19, Hepatitis B, Chronic and Virus Activation. Dr. Viveiros has published most often in Dig Dis Sci. Dr. Viveiros' most frequent co-authors are Patricia Pringle Bloom, MD, Sonali Paul and Walter Wai-Yip Chan, MD.

CMS Open Payments shows 35 general payments to Dr. Viveiros from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $485.

Dr. Viveiros graduated from Warren Alpert Medical School of Brown University in 2001.