Locations and Appointments
ColumbiaDoctors - Tarrytown
155 White Plains Road
Tarrytown, NY 10591
US
Existing Patients
Login or sign-upto Connect Patient Portal
CUIMC/Neurological Institute of New York
710 West 168th Street
New York, NY 10032
US
Existing Patients
Login or sign-upto Connect Patient Portal
Existing Patients
Login to Connect Patient Portal make an appointment, view documentation or contact your doctor’s office.
Columbia Connect App
The Columbia Connect app allows you to access convenient services to help manage your health. Access the patient portal, communicate with your doctor, manage appointments, view test results, request prescription refills, pay a bill, and find a doctor.
Insurances Accepted
Please contact the doctor's office directly to verify that your particular insurance is accepted.
Student Health
Aetna Signature Administrators
NY Signature
NYP Employee Plan
POS
EPO
PPO
HMO
Medicare Managed Care
Medicaid Managed Care
Essential Plan
Medicare Managed Care
Special Needs
Special Needs
Medicare Managed Care
HMO
PPO
EPO
Great West (National)
POS
PPO
Medicare Managed Care
Select Care (Exchange)
Medicaid Managed Care
EPO
POS
HMO
Essential Plan
ConnectiCare
Medicare Managed Care
PPO
Vytra
Medicaid Managed Care
Child/Family Health Plus
Essential Plan
Medicare Managed Care
PPO
EPO
HMO
Essential Plan
Medicaid Managed Care
Medicare Managed Care
Child/Family Health Plus
Leaf (Exchange)
Medicaid Managed Care
Child/Family Health Plus
Medicare Managed Care
Local 1199
MagnaCare
Traditional Medicare
Railroad
Multiplan
Medicaid Managed Care
Child/Family Health Plus
Essential Plan
HMO
Quality Health Management
Special Needs
Medicare Managed Care
HMO
Compass (Exchange)
POS
Medicaid (Community Plan)
Empire Plan
PPO
Oxford Liberty
Oxford Freedom
Oxford HMO
Medicare Managed Care
SelectHealth
Special Needs
Medicare Managed Care
Medicaid Managed Care
World Trade Center Health Plan
Student Health
Aetna Signature Administrators
NY Signature
NYP Employee Plan
POS
EPO
PPO
HMO
Medicare Managed Care
Medicaid Managed Care
Essential Plan
Medicare Managed Care
Special Needs
Special Needs
Medicare Managed Care
HMO
PPO
EPO
Great West (National)
POS
PPO
Medicare Managed Care
Select Care (Exchange)
Medicaid Managed Care
EPO
POS
HMO
Essential Plan
ConnectiCare
Medicare Managed Care
PPO
Vytra
Medicaid Managed Care
Child/Family Health Plus
Essential Plan
Medicare Managed Care
PPO
EPO
HMO
Essential Plan
Medicaid Managed Care
Medicare Managed Care
Child/Family Health Plus
Leaf (Exchange)
Medicaid Managed Care
Child/Family Health Plus
Medicare Managed Care
Local 1199
MagnaCare
Traditional Medicare
Railroad
Multiplan
Medicaid Managed Care
Child/Family Health Plus
Essential Plan
HMO
Quality Health Management
Special Needs
Medicare Managed Care
HMO
Compass (Exchange)
POS
Medicaid (Community Plan)
Empire Plan
PPO
Oxford Liberty
Oxford Freedom
Oxford HMO
Medicare Managed Care
SelectHealth
Special Needs
Medicare Managed Care
Medicaid Managed Care
World Trade Center Health Plan
About Maria Diaz Ordonez, MD
Dr. Diaz is an assistant professor of Neurology at CUIMC, in the division of Neuro-Oncology. She is originally from Madrid, Spain, where she graduated medical school at Universidad Complutense de Madrid. She then moved to the US to continue her medical education, completing an internal medicine internship followed by neurology residency at University of Virginia. She then pursued a 3-year Neuro-oncology fellowship at Memorial Sloan Kettering Cancer Center, after which she joined NYP/CUIMC. Her research interests include tumor markers in cerebrospinal fluid (CSF) as well as clinical trials.
Board Certifications
- Neurology
Specialties & Expertise
- Acoustic Neuroma
- Anaplastic Oligodendroglioma
- Astrocytoma
- Brain Cancer
- Brain Metastases
- Brain Tumor
- Carcinomatous meningitis
- Ependymoma
- Glioblastoma
- Gliomas
- Hemangioblastoma
- Leptomeningeal metastases
- Medulloblastoma
- Meningioma
- Oligodendroglioma
- Spinal Cord Tumor
- Spinal Tumors
Education
- Medical School: Complutense University of Madrid
- Residency: University of Virginia Health System
- Fellowship: Memorial Sloan- Kettering Cancer Center
Leadership, Titles & Positions
- Assistant Professor of Neurology at CUMC
Hospital Affiliations
- NewYork-Presbyterian / Columbia University Irving Medical Center
Need Help Finding a Doctor?
Call 1-877-426-5637