Dr. O'Brien is on Doximity
As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.
- Connect with other colleagues in the same hospital or clinic
- Search all U.S. specialist profiles and refer a patient
- Read the latest clinical news and earn CME/CEU credits
Office
8081 Innovation Park Dr
700
Fairfax, VA 22031Phone+1 571-472-2900Fax+1 571-472-2901- Is this information wrong?
Education & Training
- University of Florida College of Medicine JacksonvilleFellowship, Cardiovascular Disease, 1983 - 1984
- University of FloridaFellowship, Cardiovascular Disease, 1982 - 1983
- McGaw Medical Center of Northwestern UniversityResidency, Internal Medicine, 1977 - 1980
- Georgetown University School of MedicineClass of 1977
Certifications & Licensure
- VA State Medical License 1984 - 2026
- FL State Medical License 1981 - 1985
- IL State Medical License 1978 - 1982
- American Board of Internal Medicine Internal Medicine
- American Board of Internal Medicine Cardiovascular Disease
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory EMR, Epic Systems Corporation, 2013
- Top MD Consumers Checkbook
- Fellow (FACC) American College of Cardiology
Clinical Trials
- Multi-centre UK Study of the Acetylcholinesterase Inhibitor Donepezil in Early Dementia Associated With Parkinson's Disease Start of enrollment: 2013 Jan 01
Publications & Presentations
PubMed
- 7 citationsIn vivo 18F-flortaucipir PET does not accurately support the staging of progressive supranuclear palsy.Maura Malpetti, Sanne S Kaalund, Kamen A. Tsvetanov, Timothy Rittman, Mayen Briggs, Kieren Allinson, Luca Passamonti, Negin Holland, P. Simon Jones, Tim D. Fryer, Youn...> ;Journal of Nuclear Medicine. 2021 Nov 18
- 27 citationsStudy of mirtazapine for agitated behaviours in dementia (SYMBAD): a randomised, double-blind, placebo-controlled trialSube Banerjee, Juliet High, Susan Stirling, Lee Shepstone, Ann Marie Swart, Tanya Telling, Catherine Henderson, Clive Ballard, Peter Bentham, Alistair Burns, Nicolas F...> ;Lancet. 2021 Oct 23
- 6 citationsOlfactory Impairment in Mild Cognitive Impairment with Lewy Bodies and Alzheimer’s DiseaseAlan J. Thomas, Calum A Hamilton, Sally Barker, Rory Durcan, Sarah Lawley, Nicola Barnett, Michael J. Firbank, Gemma Roberts, Louise Allan, John T. O'Brien, John-Paul ...> ;International Psychogeriatrics. 2021 Oct 20
- Join now to see all
Grant Support
- Regulation Of Retinal GAP JunctionsNational Eye Institute2000–2012
- Facilities For Research Use Of FishNational Center For Research Resources2007
- Molecular Characterization Of GAP Junction ProteinsNational Institute Of Arthritis And Musculoskeletal And Skin Diseases1994–1996
- Functional Roles Of Ryanodine Receptor IsoformsNational Institute Of Arthritis And Musculoskeletal And Skin Diseases1994
Professional Memberships
- Member
Hospital Affiliations
- Inova Fair Oaks HospitalFairfax, Virginia
- Inova Fairfax Medical CampusFalls Church, Virginia
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence: