Ervin Eaker is a Gastroenterology physician affiliated with Glenn Research Center. OpenAlex indexes 39 publications with 2,376 citations (h-index 19).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex.
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
7230 Renner Rd
Shawnee, KS 662179901
Telephone
913-631-2600Provider last certified this registry record 2 Oct 2025.
Industry payments
37 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- ABBVIE INC.Program year202527 payments
- Janssen Biotech, Inc.Program year202515 payments
- Takeda Pharmaceuticals U.S.A., Inc.Program year202515 payments
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
92%Proton pump inhibitor64.9%Pantoprazole Sodium93%Omeprazole7%Part D≥113 patientsAluminum Complex12.8%Sucralfate100%Part D≥37 patients+ 3 more classes in this area
Cancer & immunology
3.4%Interleukin-12 Antagonist3.4%Stelara100%Part D<11 patientsCardiovascular
2.7%Bile Acid Sequestrant2.7%Colestipol 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.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Electrogastrography: a document prepared by the gastric section of the American Motility Society Clinical GI Motility Testing Task Force
Neurogastroenterology & Motility
2003 - Treatment of Chronic Constipation With Colchicine: Randomized, Double-Blind, Placebo-Controlled, Crossover Trial
The American Journal of Gastroenterology
2003 - Assessment of gastric emptying using a low fat meal: establishment of international control values
The American Journal of Gastroenterology
2000
Similar KOLs
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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.”