William Rietkerk is a Dermatology physician affiliated with Electronic Sensor Technology. OpenAlex indexes 17 publications with 410 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).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
55 Rolling Oaks Dr Ste 200
Thousand Oaks, CA 913611010
Telephone
212-661-3376Registry record last updated 21 Jul 2022.
Industry payments
30 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- UCB, Inc.Program year20255 payments
- Regeneron Healthcare Solutions, Inc.Program year20259 payments
- SUN PHARMACEUTICAL INDUSTRIES INC.Program year20259 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.
Dermatology
24.6%Corticosteroid15.4%Triamcinolone Acetonide71%Triamcinolone acetonide29%Part D + Part B≥134 patientsAzole Antifungal3.3%Clotrimazole-Betamethasone100%Part D≥28 patients+ 4 more classes in this area
Anti-infectives
22.6%Azole Antifungal11.7%Ketoconazole100%Part D≥80 patientsNitroimidazole Antimicrobial3.4%Metronidazole100%Part D≥30 patients+ 4 more classes in this area
Sensory organs
22.2%Corticosteroid22.2%Betamethasone Dipropionate61%Clobetasol Propionate26%Betamethasone Diprop Augmented13%Part D≥152 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.
- Dietary inflammatory Index Is Associated with Moderate and Severe Acne in Adults
Journal of the Academy of Nutrition and Dietetics
2019 - A Low Glycemic Index and Glycemic Load Diet Decreases Insulin-like Growth Factor-1 among Adults with Moderate and Severe Acne: A Short-Duration, 2-Week Randomized Controlled Trial
Journal of the Academy of Nutrition and Dietetics
2018 - Differences in Dietary Glycemic Load and Hormones in New York City Adults with No and Moderate/Severe Acne
Journal of the Academy of Nutrition and Dietetics
2017
Similar KOLs
Other experts from the same institution or the same specialty.
Hywel C Williams
University of Nottingham
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Mayo Clinic
Brigitte Dréno
Centre National de la Recherche Scientifique
Giovanni Damiani
University of Milan
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.”