MR
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Riordan, Neurosurgeon in Oakland, CA?
Dr. Margaret Riordan, MD is a Neurosurgeon, who primarily practices in Oakland, CA with 1 additional practice location. She is board certified. Dr. Riordan is fluent in English, Amharic, Chinese, and Spanish, and is currently seeing new patients. Dr. Riordan’s practice accepts Kaiser Permanente, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Riordan’s office at (415) 472-1000.
What languages does Dr. Riordan speak?
Dr. Riordan and their clinical team can communicate with patients in the following languages:
Amharic
Chinese
English
Spanish
What conditions does Dr. Riordan treat?
As a Neurosurgeon, Dr. Riordan diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Riordan. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Neck Spinal Stenosis
- Lower Back Spinal Stenosis with Nerve Pain in Legs
- Lower Back Spinal Stenosis
- Neck Injuries and Disorder
- Spinal Stenosis
- Narrowing of Neck Spinal Canal
- Cervical Spinal Canal Narrowing
- Cervical Stenosis
- Lumbar Spinal Stenosis with Claudication
- Narrowing of Lower Back Spinal Canal with Leg Pain
- Nerve Compression in Lower Back with Walking Pain
- Narrowing of Lower Back Spinal Canal
- Lumbar Spinal Canal Narrowing
- Lumbar Stenosis
ICD-10 Codes:
- M4802: Spinal stenosis, cervical region
- M48062: Spinal stenosis, lumbar region with neurogenic claudication
- M48061: Spinal stenosis, lumbar region without neurogenic claudication
Also known as:
- Benign Meningioma
- Benign Tumor
- Non-cancerous brain or spinal lining tumor
- Meningeal tumor
- Brain membrane tumor
ICD-10 Codes:
- D329: Benign neoplasm of meninges, unspecified
Also known as:
- Pinched Nerve in Lower Back
- Pinched Nerve in Neck
- Back Pain
- Peripheral Nerve Disorder
- Neck Injuries and Disorder
- Lumbar Radiculopathy
- Lower Back Nerve Compression
- Compressed Nerve in Lower Back
- Cervical Radiculopathy
- Neck Nerve Compression
- Compressed Nerve in Neck
ICD-10 Codes:
- M5416: Radiculopathy, lumbar region
- M5412: Radiculopathy, cervical region
Also known as:
- Traumatic Subdural Brain Bleed
- Subdural Hematoma
- Head Bleed
- Brain Hemorrhage
- Head Injury
ICD-10 Codes:
- S065XAA: Traumatic subdural hemorrhage with loss of consciousness status unknown, initial encounter
Also known as:
- Other Brain Disorder
- Brain Disease
- Various Brain Conditions
- Uncommon Brain Problems
- Specified Brain Disease
ICD-10 Codes:
- G9389: Other specified disorders of brain
Also known as:
- Benign Pituitary Tumor
- Benign Cranial Nerve Tumor
- Benign Tumor
- Pituitary Disorder
- Pituitary Tumor Treatment (PDQ)
- Prolactinoma
- Peripheral Nerve Disorder
- Non-cancerous growth in pituitary gland
- Pituitary adenoma
- Non-cancerous cranial nerve growth
- Benign cranial nerve neoplasm
ICD-10 Codes:
- D352: Benign neoplasm of pituitary gland
- D333: Benign neoplasm of cranial nerves
Also known as:
- Hemorrhagic Stroke
- Brain Bleed
- Cerebral Hemorrhage
- Intracranial Hemorrhage
ICD-10 Codes:
- I609: Nontraumatic subarachnoid hemorrhage, unspecified
- I619: Nontraumatic intracerebral hemorrhage, unspecified
Also known as:
- Brain Aneurysm
- Cerebral Aneurysm
- Brain Artery Bulge
- Intracranial Aneurysm
ICD-10 Codes:
- I671: Cerebral aneurysm, nonruptured
Also known as:
- Other Pituitary Gland Disorder
- Pituitary Disorder
- Pituitary Gland Problems
- Hypothalamic-Pituitary Axis Dysfunction
- Endocrine Gland Disorders
ICD-10 Codes:
- E236: Other disorders of pituitary gland
Also known as:
- Neck Pain
- Neck Injuries and Disorder
- Cervical Pain
- Sore Neck
- Neck Ache
ICD-10 Codes:
- M542: Cervicalgia
Also known as:
- Other Acquired Head Deformity
- Head shape change
- Deformed head
- Acquired skull deformity
ICD-10 Codes:
- M952: Other acquired deformity of head
Also known as:
- Other Muscle and Bone System Symptoms
- Movement Disorder
- Muscle Disorder
- Unusual Musculoskeletal Symptoms
- Muscle and Joint Problems
- Bone and Muscle Issues
ICD-10 Codes:
- R29898: Other symptoms and signs involving the musculoskeletal system
Also known as:
- Low Back Pain
- Back Pain
- Lumbago
- Lower Back Ache
- Backache
ICD-10 Codes:
- M5450: Low back pain, unspecified
Also known as:
- Joint Fusion Status
- Surgical Joint Fusion
- Arthrodesis History
- Fused Joint
ICD-10 Codes:
- Z981: Arthrodesis status
Also known as:
- Lower Back Disc Displacement
- Spine Injuries and Disorder
- Slipped Disc in Lower Back
- Herniated Disc in Lumbar Spine
- Lumbar Disc Protrusion
ICD-10 Codes:
- M5126: Other intervertebral disc displacement, lumbar region
Does Dr. Riordan accept my insurance?
Dr. Riordan accepts most major insurance plans. Important: Please call our office at (415) 472-1000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Riordan accept in Oakland, CA?
Dr. Riordan in Oakland, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Alameda Alliance
Alignment Health Plan
All Other Third Party
Blue Shield of California
CVS Health (formerly Aetna)
Kaiser Permanente
Kern Health Systems
Medicare
Sutter Health
UnitedHealthcare
View All Insurances
Where is Dr. Riordan's office located?
What is Dr. Riordan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Riordan's National Provider Identifier (NPI) number is 1902061955.
What common questions do patients ask about Dr. Riordan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Riordan
What is Dr. Margaret Riordan's specialty?
Dr. Riordan is a Neurosurgeon near Oakland, CA. A neurological surgeon is responsible to provide the operative and non-operative management which includes prevention, diagnosis, evaluation, treatment, critical care, & rehabilitation of various disorders related to the central, peripheral, and autonomic nervous systems. This includes their supporting structures and vascular supply, the complete evaluation and treatment of pathological process which is known to modify function or activity of the nervous system, the operative & non-operative management of pain. A neurological surgeon has specialization in treating patients with disorders of the nervous system which includes conditions affecting the brain, meninges, skull, and their blood supply, such as the extracranial carotid and vertebral arteries. They also manage disorders related to the pituitary gland, spinal cord, meninges, and vertebral column, including those that may require spinal fusion or instrumentation. In addition to this, they treat conditions affecting the cranial and spinal nerves throughout their course in the body. Contact Dr. Riordan to book an appointment today.
Is this Dr. Margaret Riordan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Riordan is affiliated with Alta Bates Summit Medical Center - Alta Bates Campus which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Neurosurgeon?
Explore Neurosurgeon with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Margaret Riordan accepting new patients in Oakland, CA?
Yes, Dr. Margaret Riordan is accepting new patients at this time.
Does Dr. Margaret Riordan offer online booking?
Please contact Dr. Riordan's office at (415) 472-1000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Margaret Riordan?
Please contact Dr. Riordan's office at (415) 472-1000 for information regarding telehealth appointment availability or for scheduling assistance.
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