Xiaocen Zhang is a Gastroenterology physician affiliated with Tufts Medical Center. OpenAlex indexes 70 publications with 1,232 citations (h-index 13).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
800 Washington St
Boston, MA 021111552
Telephone
617-636-5883Provider last certified this registry record 5 Feb 2025.
Industry payments
4 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Madrigal PharmaceuticalsProgram year20251 payment
- Gilead Sciences, Inc.Program year20251 payment
- Mallinckrodt Hospital Products Inc.Program year20241 payment
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Medicare prescribing footprint (2024)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Metabolism & gastrointestinal
100%Osmotic Laxative58.2%Gavilyte-G67%Gavilyte-C23%Peg-3350 And Electrolytes10%Part D≥87 patientsProton pump inhibitor23.2%Pantoprazole Sodium56%Omeprazole44%Part D<11 patients+ 3 more classes in this area
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
Similar KOLs
Other experts from the same institution or the same specialty.
Andrew Levey, MD
Tufts Medical Center
Mark Sarnak, MD
Tufts Medical Center
James Udelson, MD
Tufts Medical Center
Nicholas Hill, MD
Tufts Medical Center
A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments — shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”