Gregory Simpson is a Dermatology physician affiliated with California State University, Fresno. OpenAlex indexes 17 publications with 494 citations (h-index 8); ClinicalTrials.gov lists 2 registered studies 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 fundingClinical trials
- Neurophysiological Attention Test (NAT) for Objective Assessment of Adult ADHD
Sponsor: Think Now Incorporated
- Neurophysiological Attention Test (NAT) for Objective Assessment of Attention Deficit Hyperactivity Disorder (ADHD)
Sponsor: Think Now Incorporated
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.
Medicare prescribing footprint (2023)
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
37.1%Corticosteroid26.1%Triamcinolone Acetonide51%Triamcinolone acetonide45%Halobetasol Propionate4%Part D + Part B<11 patientsInterleukin-4 Receptor alpha Antagonist7.1%Dupixent Pen50%Dupixent Syringe50%Part D<11 patients+ 3 more classes in this area
Cancer & immunology
24.3%TNF inhibitor6.3%Humira(Cf) Pen82%Humira(Cf)18%Part D<11 patientsFolate Analog Metabolic Inhibitor5.2%Methotrexate100%Part D<11 patients+ 5 more classes in this area
Anti-infectives
12.6%Azole Antifungal9.7%Ketoconazole100%Part D≥54 patientsTetracycline-class Drug1.5%Doxycycline Hyclate100%Part D<11 patients+ 1 more class in this area
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
7 NIH research awards on record, funded 1998–2022 per NIH RePORTER. The latest:
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.
Similar KOLs
Other experts from the same institution or the same specialty.
Alicia Rodriguez-Pla, MD, PhD, MPH
California State University, Fresno
Haifaa Abdulhaq, MD
California State University, Fresno
Yangming Cao, MD
California State University, Fresno
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.”