Dr. Daniel Stephan Pratt, MD

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

Dr. Pratt's NPI, 1720069297, was assigned on November 10, 2005. Dr. Pratt graduated from Johns Hopkins University School of Medicine in 1989. Dr. Pratt holds Massachusetts license 74297.

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

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

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

CMS data shows 580 Medicare services from Dr. Pratt across 6 procedure codes in 2024, for 255 Medicare patients. Medicare paid $39,708 for them.

CMS counts 255 Medicare patients who saw Dr. Pratt in 2024. The largest group is 65 to 74, with 135 patients. 67% of them have high cholesterol, and 65% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.67, 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. Pratt's median patient age at 71, with 71% women.

In 2024, Dr. Pratt wrote 1,093 Medicare Part D claims for 201 patients. 88% of them were for generic drugs. CMS names the drug for 984 of them, across 18 drugs with 11 or more claims each, at $891,117 in total drug cost. In 2023, CMS named 859 claims across 16 drugs.

Dr. Pratt accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Pratt as offering telehealth.

Dmand AI links 36 papers to Dr. Pratt, published from 2011 to 2025. 2023 was the busiest year, with 4. The most frequent topics are Cholangitis, Sclerosing, Liver and Liver Cirrhosis, Biliary. Dr. Pratt has published most often in Hepatol Commun. Dr. Pratt's most frequent co-authors are Cynthia Levy, MD, Irun Bhan, MD and Christopher L. Bowlus, MD.

Dmand AI links Dr. Pratt to 4 clinical trials, 3 of them phase 2 studies. 1 is still active or recruiting. Conditions studied include Liver Cirrhosis, Biliary, Cholangitis and Cholestasis, Intrahepatic.

CMS Open Payments shows 13 general payments to Dr. Pratt from 5 drug and device companies from 2019 to 2025. Speaker and faculty fees make up the largest share, 61% of the total. Ipsen Biopharmaceuticals, Inc paid the most, $26,508.

Dr. Pratt graduated from Johns Hopkins University School of Medicine in 1989.