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Ollenschleger, Martin Daniel, MD





Providing the best care to our patients and their companions requires communicating in a way everyone understands. Interpreter services are available 24 hours a day, 7 days a week, 365 days a year. All spoken languages are available, as well as American Sign Language (AS/L).

Accepting New Patients
  • Interventional Neuroradiology
  • Neuroradiology
  • Diagnostic Radiology

Areas of Expertise
Acute Stroke Therapy, Endovascular Aneurysm Therapy, Endovascular Neurosurgery, Interventional Spine Procedures, Stroke

Hospitals and Organizations


New York University Medical Center
New York University Medical Center

New York University Medical Center

Medical School
New Jersey Medical School

New York University Medical Center
New York University Medical Center

Boston College

Professional Organizations

  • American College of Radiology, Member
  • Radiological Society of North America, Member
  • American Academy of Neurology, Member


Dr. Ollenschleger is an interventional neuroradiologist, treating conditions such as acute stroke and cerebral aneurysms with minimally-invasive techniques. He graduated from UMDNJ-New Jersey Medical School and then completed a combined residency and fellowship training program in neurology, radiology and diagnostic neuroradiology at New York University - Langone Medical Center. Following this program, he completed an additional fellowship in interventional neuroradiology.


Aetna, Anthem, BCBS Medicare, CarePartners of Connecticut, Cigna Healthcare, Colonial Cooperative Care, Community Health Network of Connecticut, Inc., Connecticare, Connecticare Commercial, Connecticare Medicare, Corvel, Coventry, Essence Healthcare, Evercare, First Health Group Corp., Focus, Health Connecticut, Health Direct, Health New England, Healthy Connecticut, Multiplan, Northeast Health Direct, One Health Plan/ Great-West Healthcare, Oxford Health Plans, Prime Health Services, Private Health Care Systems, Inc., Senior Whole Health, United Healthcare, WellCare of Connecticut, Inc.

This information is subject to change at any time. Please check with your insurance provider before scheduling your appointment or receiving services to confirm they are a participating member of the Hartford HealthCare network.