Keith Obstein is a Gastroenterology physician affiliated with Vanderbilt University Medical Center. OpenAlex indexes 140 publications with 2,477 citations (h-index 28); ClinicalTrials.gov lists 1 registered study matched to this name.
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
3601 The Vanderbilt Clinic
Nashville, TN 372325280
Telephone
615-936-2000Provider last certified this registry record 26 Mar 2022.
Clinical trials
- Visualization of the Colon Through Use of the Magnetic Flexible Endoscope (MFE) in Participants With Inflammatory Bowel Disease (IBD)
Sponsor: Vanderbilt University Medical Center
- Visualization of the Colon Through Use of the Magnetic Flexible Endoscope (MFE)
Sponsor: Vanderbilt University Medical Center
- Visualization of the Papilla Through Use of the NuView Device in Patients With FAP
Sponsor: Vanderbilt University Medical Center
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
1 company reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Medtronic, Inc.Program year20221 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
96.2%Osmotic Laxative46.3%Gavilyte-G59%Peg-3350 And Electrolytes32%Gavilyte-C8%Part D≥77 patientsProton pump inhibitor37.6%Omeprazole60%Pantoprazole Sodium27%Esomeprazole Magnesium13%Part D<11 patients+ 3 more classes in this area
Respiratory
3.8%Phenothiazine3.8%Promethazine Hcl100%Part D<11 patients
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.
NIH funding
1 NIH research award on record, funded 2016–2024 per NIH RePORTER. The latest:
- A magnetic capsule endoscope for colonoscopy in patients with inflammatory bowel disease
Vanderbilt University Medical Center
FY2024$309,816R01EB018992 - A magnetic capsule endoscope for colonoscopy in patients with inflammatory bowel disease
Vanderbilt University Medical Center
FY2023$316,138R01EB018992 - A magnetic capsule endoscope for colonoscopy in patients with inflammatory bowel disease
Vanderbilt University Medical Center
FY2022$316,138R01EB018992
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.
- Wireless Millimeter-Size Soft Climbing Robots With Omnidirectional Steerability on Tissue Surfaces
IEEE Robotics and Automation Letters
2023 - Rate of and Factors Associated with Palliative Care Referral among Patients Declined for Liver Transplantation
Journal of Palliative Medicine
2022 - Closed-loop control of soft continuum manipulators under tip follower actuation
The International Journal of Robotics Research
2021
Similar KOLs
Other experts from the same institution or the same specialty.
Wei Zheng, MD, PhD, MPH
Vanderbilt University Medical Center
Brian Rini, MD
Vanderbilt University Medical Center
William Schaffner, MD
Vanderbilt University Medical Center
Jordan Berlin, MD
Vanderbilt University 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.”