Matthew Kayser is a Psychiatry physician affiliated with University of Pennsylvania. OpenAlex indexes 99 publications with 4,984 citations (h-index 29); 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
3535 Market St
3rd Floor
Philadelphia, PA 191043309
Telephone
215-746-6700Registry record last updated 6 Jun 2013.
Clinical trials
- Zaleplon in HIV Patients With Depression
Sponsor: University of Pennsylvania
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 (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.
Nervous system
100%SSRI30.8%Escitalopram Oxalate41%Sertraline Hcl30%Trazodone Hcl30%Part D<11 patientsBenzodiazepine23.8%Clonazepam50%Lorazepam50%Part D<11 patients+ 4 more classes 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
11 NIH research awards on record, funded 2005–2026 per NIH RePORTER. The latest:
- Investigating sleep regulation and function during early development
University of Pennsylvania
FY2026$917,232R35NS137329 - Leveraging GWAS Findings to Map Variants and Identify Novel Effector Genes for Alcohol-Related Traits
University of Pennsylvania
FY2026$629,759R01AA030056 - Deciphering the molecular interplay of sleep and neurodegeneration with Drosophila
University of Pennsylvania
FY2026$607,259R01AG071777
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.
- Treatment of Insomnia with Zaleplon in HIV+ Significantly Improves Sleep and Depression
Psychopharmacology Bulletin
2025 - Neurofibromin 1 regulates early developmental sleep in Drosophila
Neurobiology of Sleep and Circadian Rhythms
2023
Similar KOLs
Other experts from the same institution or the same specialty.
Carl June, MD
University of Pennsylvania
Harold Feldman, MD
University of Pennsylvania
Howard Herrmann, MD
University of Pennsylvania
Robert Vonderheide, MD
University of Pennsylvania
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.”