John Visser is a Neurology physician affiliated with Spectrum Health. OpenAlex indexes 9 publications with 205 citations (h-index 6).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Medicare prescribing footprint (2019)
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
52%Anticholinergic52%Dicyclomine Hcl100%Part D<11 patientsCardiovascular
48%Beta blocker48%Propranolol Hcl Er100%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.
- Prevention of Meningococcal Serogroup B Infections in Children: A Protein‐Based Vaccine Induces Immunologic Memory
The Journal of Infectious Diseases
2001 - Influvac: a safe Madin Darby Canine Kidney (MDCK) cell culture-based influenza vaccine.
PubMed
1999 - Psychological impact of continuous subcutaneous insulin infusion pump therapy in non-selected newly diagnosed insulin dependent (type 1) diabetic children: evaluation after two years of therapy.
PubMed
1991 - Psychological impact of continuous subcutaneous insulin infusion pump therapy in non-selected newly diagnosed insulin dependent (type 1) diabetic children: Evaluation after two years of therapy [IMPACT PSYCHOLOGIQUE D'UN TRAITEMENT PAR PERFUSION SOUS-CUTANEE CONTINUE D'INSULINE DES LE DIAGNOSTIC CHEZ LES ENFANTS DIABETIQUES NON SELECTIONNES: EVALUATIONS APRES DEUX AND DE TRAITEMENT]
Open Repository and Bibliography (University of Luxembourg)
1990
Similar KOLs
Other experts from the same institution or the same specialty.
Kevin Klos, MD
Spectrum Health
Martin Luchtefeld, MD
Spectrum Health
Darryl Elmouchi, MD
Spectrum Health
Deanna Mitchell, MD
Spectrum Health
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.”