Gad Marshall is a Neurology physician affiliated with Brigham and Women's Hospital. OpenAlex indexes 6 publications with 217 citations (h-index 4).
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
Bwh Memory Disorder Unit
221 Longwood Ave
Boston, MA 02115
Telephone
617-732-8085Registry record last updated 8 Jul 2007.
Industry payments
1 company reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- F. Hoffmann-La Roche AGProgram year20251 payment
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.
Nervous system
100%SSRI49.1%Trazodone Hcl44%Escitalopram Oxalate41%Citalopram Hbr15%Part D<11 patientsCholinesterase Inhibitor44.2%Donepezil Hcl100%Part D≥21 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
8 NIH research awards on record, funded 2007–2025 per NIH RePORTER. The latest:
- Neural Correlates of Apathy Across the Alzheimer's Disease Continuum
Massachusetts General Hospital
FY2025$556,665R01AG067021 - Neural Correlates of Apathy Across the Alzheimer's Disease Continuum
Massachusetts General Hospital
FY2024$574,096R01AG067021 - A Proof of Concept Trial of a Sirtuin-NAD+ Activator in Alzheimer's Disease
Brigham and Women'S Hospital
FY2024$229,495R01AG071074
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.
- Objective measures of instrumental activities of daily living and neuropsychiatric symptoms in aging and early‐stage Alzheimer's disease
Alzheimer s & Dementia Diagnosis Assessment & Disease Monitoring
2025 - White matter hyperintensities and cortical acetylcholinesterase activity in parkinsonian dementia
Acta Neurologica Scandinavica
2005
Similar KOLs
Other experts from the same institution or the same specialty.
Paul Ridker, MD
Brigham and Women's Hospital
Scott Solomon, MD
Brigham and Women's Hospital
Dennis Selkoe, MD
Brigham and Women's Hospital
Marc Pfeffer, MD
Brigham and Women's Hospital
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.”