About me
As a dual-trained physician with sub-specialty fellowships in Vascular Neurology and Neuro Interventional Radiology, Dr. Stemer offers patients with cerebrovascular disease complete continuity of care from the emergency room to the angiography suite, through the Neuro Intensive Care Unit, and follow-up clinic appointments. He treats patients of all ages, from pediatric to the elderly, at both MedStar Georgetown where he serves as Director of Stroke Neurology and at MedStar Washington Hospital Center.
Dr. Stemer graduated from Rush Medical School in Chicago, IL and also served his internship and residency at Rush University Medical Center followed by a fellowships in Vascular Neurology at University of California San Diego Medical Center and Endovascular Surgical Neuroradiology at MedStar Washington Hospital Center in Washington, DC.
Currently an Assistant Professor of Neurology and an Assistant Professor of Radiology at MedStar Georgetown, Dr. Stemer has won recognition and awards for his teaching. An active researcher, he is also widely published and a frequent lecturer.
Philosophy of Care
My goal is to practice medicine in a compassionate manner, tailored to each patient's specific circumstances. My commitment is to provide the highest level of evidence-based clinical care to cerebrovascular patients including opportunities to participate in ongoing research studies. And, as a physician at a tertiary care academic center, I actively participate in the education and training we offer to medical students, residents and fellows.
Conditions Treated
- Stroke
- Brain aneurysm
- Brain arterial venous malformation
- Intercranial aphaschlerosis
- Carotid stenosis
- Moyamoya disease
- Cerebral angiography,
- Mechanical thrombectomy for acute ischemic stroke
- Brain aneurysm treatment (coils, stent, flow diverters)
- Brain arteriovenous malformation/fistula embolization (Onyx, nBCA)
- Head and neck tumor embolization (Onyx, PolyVinyl Alcohol particles)
- Vasospasm treatment (intracranial angioplasty, intra-arterial calcium channel blockers)
- Intracranial angioplasty and stenting
- Carotid artery angioplasty and stenting
Clinical areas of focus
- Aneurysm
- Arteriovenous Fistula Embolization
- Arteriovenous Malformation (AVM)
- Arteriovenous Malformation (AVM) Surgery
- Carotid Endarterectomy
- Carotid Stenosis
- Cerebral Internal Carotid Artery Ophthalmic Segment Aneurysm Coiling
- Cerebrovascular Accident (CVA)
- Hemorrhagic Stroke Treatment
- Intracerebral Hemorrhage
- Ischemic Stroke
- Moyamoya
- Stroke Management
- Subarachnoid Hemorrhage Treatment
- Transient Ischemic Attack (TIA)
Conditions and procedures
Conditions I treat
- Abnormal Body Structure Imaging
- Abnormal Function Study Results
- Abnormal Mri
- Amyotrophic Lateral Sclerosis
- Aneurysm
- Anxiety
- Aphagia And Dysphagia
- Arteriovenous Malformation (AVM)
- Artery Disorders
- Atherosclerosis
- Binocular Movement Disorders
- Blindness And Low Vision
- Bone Disorders
- Brain Aneurysm
- Brain Disorders
- Carotid Stenosis
- Cerebrovascular Diseases
- Cocaine Related Disorders
- Cognitive Function Disorders
- Conductive Hearing Loss
- Convulsions
- Degenerative Diseases Of Nervous System
- Dementia
- Demyelinating Diseases Of Central Nervous System
- Disorders Of Autonomic Nervous System
- Disorders Of Trigeminal Nerve
- Disturbances Of Skin Sensation
- Dizziness And Lightheadedness
- Dorsalgia
- Dorsopathies
- Dyslexia And Symbolic Dysfunctions
- Epilepsy
- Epilepsy And Seizures
- Eye And Adnexa Disorders
- Eyelid Disorders
- Facial Nerve Disorder
- Falls And Gait Disorders
- Fractures Of The Neck
- Gait And Balance Problems
- Head Injury
- Headache
- Hemangioma
- Herpes
- Hydrocephalus
- Hypotension
- Intracerebral Hemorrhage
- Ischemic Stroke
- Lack Of Coordination
- Long Term Drug Therapy
- Middle Ear Disorders
- Migraine
- Multiple Sclerosis
- Muscle Disorders
- Myopathies
- Nerve Root Disorders
- Nervous And Musculoskeletal Symptoms
- Nervous System Disorders
- Neurodegeneration
- Nonpsychotic Mental Disorder
- Nontraumatic Subarachnoid Hemorrhage
- Paralytic Strabismus
- Paralytic Syndrome
- Paraplegia And Quadriplegia
- Parkinson's Disease
- Phakomatoses
- Postprocedural States
- Precerebral Artery Occlusion
- Sarcoidosis
- Secondary Malignant Neoplasm Of Brain
- Secondary Parkinsonism
- Skull Fractures
- Somnolence, Stupor And Coma
- Speech Disturbances
- Spinal Muscular Atrophy And Related Syndromes
- Subarachnoid Hemorrhage In Newborn
- Subcortical Infarction
- Syncope
- Transient Cerebral Ischemic Attacks
- Traumatic Brain Injury
- Type 2 Diabetes Mellitus
- Vascular Malformations Of The Brain
- Vestibular Disorders
- Vision Disturbances
Procedures I perform
- Angiography
- Balance And Gait Disorders Treatment
- Carotid Artery Stenting
- Carotid Endarterectomy
- Cerebral Atherosclerosis Treatment
- Cerebral Internal Carotid Artery Ophthalmic Segment Aneurysm Coiling
- Cervicogenic Dizziness Treatment
- Cognitive Stimulation Therapy
- Common Carotid Artery Dilation
- Computerized Tomography (CT) Scan
- Deep Brain Stimulation
- Duplex Scan Of Upper Extremity Arteries
- Electroencephalogram
- Electroencephalogram Review
- Electroencephalogram Setup And Takedown
- Fluoroscopy Bilateral Common Carotid Arteries
- Fluoroscopy Of Bilateral Common Carotid Arteries Using Other Contrast Agent
- Hemorrhagic Stroke Treatment
- Kinesiology Analysis
- Magnetic Resonance Imaging (MRI)
- MRA With Contrast
- Neuromuscular Reeducation For Muscle Control
- Neuropsychological Testing
- Occlusion Intracranial Artery
- Occlusion Left External Iliac Artery
- Oral And Pharyngeal Swallowing Function Evaluation
- Parkinson's Disease
- Patching Therapy
- Popliteal Artery Entrapment Syndrome Treatment
- Soft Tissue Neck Ct Without Contrast
- Stroke Management
- Subclavian Artery Extirpation
- Swallowing Disorder Treatment
- Visian Icl
Practice locations
Distance from Change LocationEnter your Location
3800 Reservoir Rd NW Pasquerilla Healthcare Center 7th Fl Dept Neurology Washington, DC, 20007
202-444-8525Fax 877-245-1499
Insurance
MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.
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List of insurance plans we accept
- CareFirst Administrators
- Aetna Better Health of VA
- Aetna Classic 3500
- Aetna Managed Choice (POS)
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Kaiser Permanente Signature
- Medicare Advantage - Advantra Value (PPO)
- Anthem BCBS Medi Blue SNP
- OCI Direct (HMO)
- WellPoint Maryland - Maryland Health Choice
- United Healthcare Select HMO - EPO/NPP
- UnitedHealthcare and AARP Medicare Complete Plans
- CareFirst Dual Prime HMO-SNP
- Medicare FFS
- United Healthcare Choice Plus Cardiac Global
- Kaiser Permanente Medicare Plus
- Aetna HMO
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Humana Medicare Advantage - HMO Open Access
- Anthem BCBS Medi Blue Dual Adv
- Uniformed Services Family Health Plan
- Private Fee-for-Service Plans (PFFS)
- Advantra Platinum (PPO)
- Amerigroup DC Healthy Families
- Choice POS II
- CareFirst Blue Preferred PPO
- United Student Resources
- AmeriHealth Caritas DC Healthy Families
- Anthem BCBS of VA HealthKeepers (HMO)
- Alterwood Advanatge HMO & DSNP Plans
- Cigna Alliance Medicare (HMO)
- United Healthcare Choice
- CIGNA SureFit (HMO)
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Health Services for Children with Special Needs
- Priority Partners - Maryland Health Choice
- Aetna Advantage 5750
- Aetna Advantage 6350PD
- CareFirst Maryland Point of Service Plan
- CIGNA PPO
- MedStar Family Choice DC Healthy Families
- Tricare Reserve Select
- CareFirst MedStar Select PPO
- HealthyBlue PPO
- Medicare Direct
- Coventry Health Care of Virginia
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- CIGNA POS/Network POS
- Choice Care Network/HUMANA (PPO)
- Aetna Managed Choice Open Access (POS)
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Aetna VA Exchange
- BlueChoice Open Access
- CareFirst FEP Blue Focus
- TriWest Healthcare Alliance
- CareFirst Blue Card Program
- Aetna Advantage 6350
- Cigna Preferred Medicare (HMO)
- Optimum Choice
- Healthy Blue (HMO, POS)
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- TRICARE East Prime
- IH-Open Network Only Plus
- UnitedHealthcare Individual Exchange Plans
- CareFirst (NCA) Indemnity
- MultiPlan, Inc
- IH-Open EPO Plus
- Kaiser Permanente Flexible Choice 3-tier POS
- Kaiser Permanente Select - Added Choice
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- IH-Open HMO
- Options PPO Cardiac Global
- IH-Open POS II
- CareFirst Maryland Indemnity or PPO
- IH-Open POS Plus
- Kaiser Permanente Select
- Kaiser Permanente Select Cardiac Global
- Aetna Signature Administrator PPO/TPA
- Navigate
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Humana Gold Plus HMO
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- IH-EPO Plus
- Aetna Elect Choice/ Open Access (POS)
- Veterans Affairs Community Care Network
- United Healthcare Navigate Cardiac Global
- Aetna Open Choice (PPO)
- Choice POS II Open Access
- IH-Open HMO Option
- Johns Hopkins Advantage MD PLUS PPO
- Aetna Premier 200PD
- AMERIVANTAGE/Amerigroup Community Care
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- UHC Passport
- United Healthcare Choice Plus
- Optima Family Care MCO - VA Medicaid MCO
- Kaiser Permanente Flexible Choice POS Cardiac Global
- AmeriHealth Caritas DC Healthcare Alliance
- Anthem BCBS of VA HealthKeepers Plus
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- Magellan Complete Care of VA - VA Medicaid MCO
- Aetna Basic
- Optimum Choice Preferred (POS)
- Core Essential (HMO)
- Aetna Classic 5000PD
- Coventry Health Care National Network PPO
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Choice Fund PPO
- HighMark
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- CIGNA PPO Plus
- Sentara Health
- Aetna Medicare Advantage PFFS Plan
- Cigna TotalCare (HMO D-SNP)
- Geisinger Medicare Advantage
- Mamsi Life & Health (Indem./PPO)
- DC/MD SHOP QHP Small Business Plans
- CareFirst NASCO
- Cigna True Choice Plus Medicare (PPO)
- IH-POS Plus
- IH-PPO
- Kaiser Maryland Medicaid MCO
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Select HMO/HealthFund/Health Network
- Cigna True Choice Medicare (PPO)
- M.D. IPA Preferred (POS)
- CareFirst Community Health Plan of MD
- Anthem Federal Employee Program Basic
- Kaiser Permanente Medicare Advantage Signature and Select
- Aetna Quality Point of Service (POS)
- M.D. IPA (HMO)
- Aetna Medicare Advantage HMO & PPO Plans
- Choice POS
- IH-POS
- Jai Medical Systems - Maryland Health Choice
- Aetna Traditional Choice (PPO)
- TRICARE East Select
- OA Plus
- Aetna Student Health Insurance
- United Medicare Private Fee-for-Service (PFFS) plans
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- CareFirst Group Medicare Advantage
- CIGNA HMO & Network (HMO)
- NYC Medicare Advantage Plus
- Aetna Worker's Compensation Network
- MedStar Family Choice - Maryland Health Choice
- Aetna Better Health of MD
- Cigna Achieve Medicare (HMO C-SNP)
- Lasso Healthcare - Medicare Medical Savings Account
- CIGNA HMO Open Access
- Aetna Classic 5000
- CIGNA Connect EPO
- United HealthCare Community Plan - Maryland Health Choice Program
- Coventry of Delaware HMO/PPO
- First Health PPO
- Johns Hopkins Advantage MD HMO
- Private Health Care Systems (PPO)
- CareFirst Blue Choice Opt Out Open Access
- CareFirst MedStar PPO
- MedStar Family Choice DC Healthcare Alliance
- Network OA
- Anthem BCBS Medi Blue Plus
- United Healthcare Options (PPO)
- CareFirst EPO
- United Healthcare Select Plus (POS)
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Erickson Advantage Plans
- Amerigroup DC Alliance
- HumanaChoice PPO
- Great-West Healthcare POS/CIGNA
- United Healthcare Community Plan - VA Medicaid MCO
- UnitedHealthcare Medicare Adv. Special Needs Plans
- HumanaChoice Honor's plan PPO
- Anthem Federal Employee Program Standard
- Maryland Physicians Care MCO
- Humana Medicare Advantage - PPO
- IH-Network Only Plus
- CareFirst BlueChoice HMO
- CareFirst Federal Employee Program (Std. & Basic PPO)
- POS OA
- Employee Health Plan
- United Healthcare Choice Cardiac Global
- Kaiser Permanente Signature - Added Choice
- Blue Choice Advantage
- TRICARE for Life East
- Beech Street PPO
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Johns Hopkins Advantage MD PPO
- First Health PPO
- Police and Fire Clinic
- CIGNA Indemnity
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- CIGNA EPO
- IH-HMO
- IH-Indemnity
Videos
Education
Board Certification: American Board of Psychiatry and Neurology, Psychiatry and Neurology
Fellowship: MedStar Washington Hospital Center (2013)
Fellowship: University of California San Diego-Neurology (2010)
Residency: Rush University Medical Center (2009)
Internship: Rush University Medical Center (2006)
Medical School: Rush Medical College at Rush University (2005)
Awards
- Top Instructor, Department of Neurology MedStar Georgetown University Hospital
- Resident Teacher of the Year, Rush University Medical Center
Hospital affiliations
News and publications
- Stemer AB, Bank WO, Bell RS, Liu AH, Armonda RA. "Penumbra 5MAX-ACE: Initial Experience and Cost Analysis." Platform Presentation. Anatomy-Biology-Clinical Correlations (ABC) Working Group in Interventional Neuroradiology (WIN) Seminar. Val d'Isere, France. January 2014.
- Bank WO, Stemer AB, Armonda RA, Bell RS. Intermittent balloon occlusion to favor nidal penetration during embolization of arteriovenous malformations: a technique modification. J Neurointerv Surg. 2013 Aug 13.
- Huisa BN, Stemer AB, Walker MG, Rapp K, Meyer BC, Zivin JA. Transcranial laser therapy for acute ischemic stroke: a pooled analysis of NEST-1 and NEST-2. Int J Stroke. 2013 Jul;8(5):315-20
- Stemer AB, Bank WO, Armonda RA, Liu AH, Herzig DW, Bell RS. Acute embolization of ruptured brain arteriovenous malformations. J Neurointerv Surg. 2013 May 1;5(3)196-200.
- Stemer AB, Huisa B, Zivin J. "Transcranial Laser Therapy For Acute Ischemic Stroke: A Pooled Analysis of NEST-1 and NEST-2." Platform Presentation, American Academy of Neurology Annual Meeting 2010.