Donald Royall is a Psychiatry physician affiliated with Institute for Neurodegenerative Disorders. OpenAlex indexes 223 publications with 9,226 citations (h-index 38); 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 fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
7703 Floyd Curl Dr
San Antonio, TX 782293901
Telephone
210-567-5555Registry record last updated 17 May 2012.
Clinical trials
- δ in Dementia Clinical Trials
Sponsor: The University of Texas Health Science Center at San Antonio
- A Pilot of the Feasibility of Using the Iron-Chelator Deferiprone on Mild Cognitive Impairment
Sponsor: The University of Texas Health Science Center at San Antonio
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.
Industry payments
1 company reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Lundbeck LLCProgram year20221 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
98.9%SSRI34%Sertraline Hcl45%Escitalopram Oxalate18%Trazodone Hcl16%Fluoxetine Hcl12%Citalopram Hbr4%Paroxetine Hcl2%Fluvoxamine Maleate2%Part D<11 patientsMood Stabilizer20.8%Lamotrigine100%Part D≥175 patients+ 13 more classes in this area
Cardiovascular
1.1%Beta blocker0.7%Propranolol Hcl100%Part D<11 patientsalpha-Adrenergic Blocker0.4%Prazosin Hcl100%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.
NIH funding
6 NIH research awards on record, funded 2003–2026 per NIH RePORTER. The latest:
- Novel Methods for Clinical Trials in Dementia and Cognitive Decline
University of Texas Hlth Science Center
FY2026$455,996R01AG080548 - Novel Methods for Clinical Trials in Dementia and Cognitive Decline
University of Texas Hlth Science Center
FY2024$455,996R01AG080548 - Novel Methods for Clinical Trials in Dementia and Cognitive Decline
University of Texas Hlth Science Center
FY2023$463,746R01AG080548
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.
Similar KOLs
Other experts from the same institution or the same specialty.
Charles Nemeroff, MD
Dell Medical School
Maurizio Fava, MD
Massachusetts General Hospital
John Krystal, MD
Yale University
Jeffrey Lieberman, MD
Columbia University College of Physicians and Surgeons
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.”