BG
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Grannan, Neurosurgeon in Seattle, WA?
Dr. Benjamin Grannan, MD is a Neurosurgeon, who primarily practices in Seattle, WA with 2 additional practice locations. He is board certified. Dr. Grannan is fluent in English, Spanish, and Tagalog, and is currently seeing new patients. Dr. Grannan’s practice accepts Cigna, Kaiser Permanente, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Grannan’s office at (206) 520-5000.
What languages does Dr. Grannan speak?
Dr. Grannan and their clinical team can communicate with patients in the following languages:
English
Spanish
Tagalog
What conditions does Dr. Grannan treat?
As a Neurosurgeon, Dr. Grannan 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. Grannan. 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:
- Parkinson's Disease
- Parkinson's Disease without Involuntary Movements
- Parkinson's Disease with Dyskinesia and Fluctuations
- Parkinson's Disease with Fluctuating Symptoms
- PD
- Shaking Palsy
- Paralysis Agitans
- Early Parkinson's', 'Non-dyskinetic Parkinsonism', 'Stable Parkinson's Disease
- Parkinson's with Variable Movements', 'PD with Fluctuating Dyskinesia', 'On-Off Parkinson's
- Fluctuating Parkinsonism
- Parkinson's with 'On-Off' Periods', 'Variable Parkinson's Symptoms
ICD-10 Codes:
- G20: Parkinson's disease
- G20A1: Parkinson's disease without dyskinesia, without mention of fluctuations
- G20B2: Parkinson's disease with dyskinesia, with fluctuations
- G20A2: Parkinson's disease without dyskinesia, with fluctuations
Also known as:
- Intractable Focal Epilepsy with Complex Partial Seizures
- Intractable Focal Epilepsy with Simple Partial Seizures
- Epilepsy
- Drug-resistant complex partial epilepsy
- Refractory focal impaired awareness seizures
- Hard-to-treat complex partial seizures
- Drug-resistant simple partial epilepsy
- Refractory focal seizures
- Hard-to-treat partial epilepsy
ICD-10 Codes:
- G40219: Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus
- G40119: Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, without status epilepticus
Also known as:
- Essential Tremor
- Tremor
- Essential tremor
- Familial Tremor
- Benign Essential Tremor
ICD-10 Codes:
- G250: Essential tremor
Also known as:
- Secondary Brain Cancer
- Brain Tumor
- Metastatic brain cancer
- Brain metastases
- Cancer spread to brain
ICD-10 Codes:
- C7931: Secondary malignant neoplasm of brain
Also known as:
- Trigeminal Neuralgia
- Tic Douloureux
- Facial Nerve Pain
ICD-10 Codes:
- G500: Trigeminal neuralgia
Also known as:
- Bone, Soft Tissue, or Skin Growth of Unknown Type
- Brain Growth of Unknown Type
- Bone Disease
- Skin Condition
- Brain Disease
- Bone tumor of unknown nature
- Skin lesion of unknown type
- Soft tissue mass of unknown behavior
- Brain tumor of unknown nature
- Brain lesion of unknown behavior
- Indeterminate brain mass
ICD-10 Codes:
- D492: Neoplasm of unspecified behavior of bone, soft tissue, and skin
- D496: Neoplasm of unspecified behavior of brain
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:
- Brain Tumor
- Frontal Lobe Brain Tumor
- Brain Cancer
- Cerebral Tumor
- Intracranial Tumor
- Malignant Brain Tumor
- Frontal Lobe Cancer
- Malignant Frontal Lobe Tumor
ICD-10 Codes:
- C719: Malignant neoplasm of brain, unspecified
- C711: Malignant neoplasm of frontal lobe
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:
- Brachial Plexus Injury
- Brachial Plexus Injuries
- Brachial Plexus Lesion
- Shoulder Nerve Damage
- Arm Nerve Injury
ICD-10 Codes:
- S143XXA: Injury of brachial plexus, initial encounter
Also known as:
- Neurostimulator Management
- Nerve Stimulator Adjustment
- Implantable Neurostimulator Care
- Deep Brain Stimulator Management
ICD-10 Codes:
- Z4542: Encounter for adjustment and management of neurostimulator
Also known as:
- Muscle Cramps
- Muscle Spasms
- Charley Horse
- Leg Cramps
ICD-10 Codes:
- R252: Cramp and spasm
Also known as:
- Headache
- Head pain
- Cephalalgia
- Tension headache
ICD-10 Codes:
- R519: Headache, unspecified
Also known as:
- Benign Nerve System Tumor
- Autonomic Nervous System Disorder
- Benign Tumor
- Peripheral Nerve Disorder
- Non-cancerous nerve growth
- Benign peripheral nerve neoplasm
- Benign autonomic nerve neoplasm
ICD-10 Codes:
- D3610: Benign neoplasm of peripheral nerves and autonomic nervous system, unspecified
Does Dr. Grannan accept my insurance?
Dr. Grannan accepts most major insurance plans. Important: Please call our office at (206) 520-5000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Grannan accept in Seattle, WA?
Dr. Grannan in Seattle, WA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Cambia (Regence)
Centene
CVS Health (formerly Aetna)
Humana
Medicare
Molina
Premera Blue Cross
State of Washington
Trusteed Plans Service Corporation (TPSC)
UnitedHealthcare
View All Insurances
Where is Dr. Grannan's office located?
What is Dr. Grannan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Grannan's National Provider Identifier (NPI) number is 1417360561.
What common questions do patients ask about Dr. Grannan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Grannan
What is Dr. Benjamin Grannan's specialty?
Dr. Grannan is a Neurosurgeon near Seattle, WA. 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. Grannan to book an appointment today.
Is this Dr. Benjamin Grannan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Grannan is affiliated with Uw Medical Center - Montlake 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 Benjamin Grannan accepting new patients in Seattle, WA?
Yes, Dr. Benjamin Grannan is accepting new patients at this time.
Does Dr. Benjamin Grannan offer online booking?
Please contact Dr. Grannan's office at (206) 520-5000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Benjamin Grannan?
Please contact Dr. Grannan's office at (206) 520-5000 for information regarding telehealth appointment availability or for scheduling assistance.
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