William Hasler is a Gastroenterology physician. OpenAlex indexes 408 publications with 19,389 citations (h-index 69); ClinicalTrials.gov lists 1 registered study matched to this name. By OpenAlex citation count, this profile ranks in the top 5% of Gastroenterology profiles in the findmyKOL directory.
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
1500 E Medical Center Dr
Ann Arbor, MI 481095000
Telephone
734-936-4000Provider last certified this registry record 18 Oct 2021.
Clinical trials
- Pyloric Sphincter Abnormalities in Patients With Gastroparesis Symptoms
Sponsor: Johns Hopkins Bloomberg School of Public Health
- A Pilot Study on the Efficacy and Safety of Olanzapine in Gastroparesis
Sponsor: University of Michigan
- Gastroparesis Registry
Sponsor: Johns Hopkins Bloomberg School of Public Health
Registered studies on ClinicalTrials.gov where the overall official or a site investigator name-matches this physician, confirmed against known institution/geography. Latest few shown; the full list is part of the full profile.
Industry payments
5 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Enterra Medical, Inc.Program year20256 payments
- Cumberland Pharmaceuticals, Inc.Program year20251 payment
- Atmo Biosciences IncProgram year20251 payment
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
NIH funding
3 NIH research awards on record, funded 1999–2015 per NIH RePORTER. The latest:
- Gastroparesis Clinical Research Consortium-University of Michigan Clinical Center
University of Michigan at Ann Arbor
FY2015$43,950U01DK073985 - Gastroparesis Clinical Research Consortium-University of Michigan Clinical Center
University of Michigan at Ann Arbor
FY2014$117,623U01DK073985 - Gastroparesis Clinical Research Consortium-University of Michigan Clinical Center
University of Michigan at Ann Arbor
FY2013$112,759U01DK073985
Awards in the NIH RePORTER records where a principal investigator name matches this physician at an organization in their practice state. Latest award years shown; each row links to the project record on RePORTER.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Mast cell mediation of visceral sensation and permeability in irritable bowel syndrome
Neurogastroenterology & Motility
2022 - Role of chronic cannabis use: Cyclic vomiting syndrome vs cannabinoid hyperemesis syndrome
Neurogastroenterology & Motility
2019
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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.”