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Dr. Peter Nguyen, MD, PHD

O Fallon, IL

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Nguyen, Neurologist in O Fallon, IL?

    Dr. Peter Nguyen, MD, PHD is a Neurologist, who primarily practices in O Fallon, IL with 2 additional practice locations. He is board certified. Dr. Nguyen is fluent in English, and is currently seeing new patients. Dr. Nguyen’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nguyen’s office at (805) 682-2775.

    What languages does Dr. Nguyen speak?

    Dr. Nguyen and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Nguyen treat?

    As a Neurologist, Dr. Nguyen 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. Nguyen. 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:

    • Ischemic Stroke
    • Hemorrhagic Stroke
    • Brain Attack
    • Cerebral Infarction
    • Brain Ischemia
    • Brain Bleed
    • Cerebral Hemorrhage
    • Intracranial Hemorrhage
    • Lack of Blood Flow to Brain
    • Stroke due to clot

    ICD-10 Codes:

    • I639: Cerebral infarction, unspecified
    • I609: Nontraumatic subarachnoid hemorrhage, unspecified
    • I6389: Other cerebral infarction
    • I619: Nontraumatic intracerebral hemorrhage, unspecified
    • I63511: Cerebral infarction due to unspecified occlusion or stenosis of right middle cerebral artery
    • I63512: Cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral artery
    • I615: Nontraumatic intracerebral hemorrhage, intraventricular
    • I608: Other nontraumatic subarachnoid hemorrhage

    Also known as:

    • Acute Respiratory Failure with Low Oxygen
    • Respiratory Failure
    • Sudden lung failure with low oxygen
    • Hypoxic respiratory failure
    • Acute breathing failure with hypoxia

    ICD-10 Codes:

    • J9601: Acute respiratory failure with hypoxia

    Also known as:

    • Brain Aneurysm
    • Cerebral Aneurysm
    • Brain Artery Bulge
    • Intracranial Aneurysm

    ICD-10 Codes:

    • I671: Cerebral aneurysm, nonruptured

    Also known as:

    • Left Carotid Artery Disease
    • Right Carotid Artery Disease
    • Carotid Artery Disease
    • Left Carotid Artery Stenosis
    • Narrowed Left Carotid Artery
    • Left Carotid Artery Blockage
    • Right Carotid Artery Stenosis
    • Narrowed Right Carotid Artery
    • Right Carotid Artery Blockage

    ICD-10 Codes:

    • I6522: Occlusion and stenosis of left carotid artery
    • I6521: Occlusion and stenosis of right carotid artery

    Also known as:

    • Changes in Mental State
    • Mental Disorder
    • Confusion
    • Disorientation
    • Changes in awareness

    ICD-10 Codes:

    • R4182: Altered mental status, unspecified

    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:

    • Carotid Artery Disease
    • Carotid Stenosis
    • Blocked Carotid Artery
    • Neck Artery Disease
    • Carotid Artery Narrowing

    ICD-10 Codes:

    • I6523: Occlusion and stenosis of bilateral carotid arteries

    Also known as:

    • Hemorrhagic Stroke
    • Brain Bleed
    • Intracranial Hemorrhage
    • Cerebral Hemorrhage

    ICD-10 Codes:

    • I6200: Nontraumatic subdural hemorrhage, unspecified

    Also known as:

    • Ischemic Stroke
    • Brain Ischemia
    • Cerebral Infarction
    • Clot Stroke

    ICD-10 Codes:

    • I63231: Cerebral infarction due to unspecified occlusion or stenosis of right carotid arteries

    Also known as:

    • Normal Pressure Hydrocephalus
    • Hydrocephalus
    • NPH
    • Idiopathic Normal Pressure Hydrocephalus

    ICD-10 Codes:

    • G912: (Idiopathic) normal pressure hydrocephalus

    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

    Does Dr. Nguyen accept my insurance?

    Dr. Nguyen accepts most major insurance plans. Important: Please call our office at (805) 682-2775 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Nguyen accept in O Fallon, IL?

    Dr. Nguyen in O Fallon, IL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Alignment Health Plan

    • All Other Third Party

    • Blue Shield of California

    • CenCal Health

    • Centene

    • Department of Defense / Tricare

    • Express Scripts

    • Humana

    • Medicare

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Nguyen's office located?

    Dr. Peter Nguyen's Primary Practice

    1 Saint Elizabeth Blvd

    O Fallon, IL 62269

    (805) 682-2775

    Get Directions

    Dr. Peter Nguyen's Practice 2

    200 Health Care Dr

    Greenville, IL 62246

    Get Directions

    Dr. Peter Nguyen's Practice 3

    12866 Troxler Ave

    Highland, IL 62249

    Get Directions

    What is Dr. Nguyen's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Nguyen's National Provider Identifier (NPI) number is 1306104633.

    What common questions do patients ask about Dr. Nguyen?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Nguyen

    What is Dr. Peter Nguyen's specialty?

    Dr. Nguyen is a Neurologist near O Fallon, IL.

    A neuropathologist is expert in the diagnosis of diseases of the nervous system and skeletal muscles and functions as a consultant primarily to neurologists and neurosurgeons. The neuropathologist is knowledgeable in the infirmities of humans as they affect the nervous and neuromuscular systems, be they degenerative, infectious, metabolic, immunologic, neoplastic, vascular or physical in nature.

    Contact Dr. Nguyen to book an appointment today.

    Is this Dr. Peter Nguyen affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Nguyen is affiliated with Santa Barbara Cottage Hospital 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 Neurologist?

    Explore Neurologist 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 Peter Nguyen accepting new patients in O Fallon, IL?

    Yes, Dr. Peter Nguyen is accepting new patients at this time.

    Does Dr. Peter Nguyen offer online booking?

    Please contact Dr. Nguyen's office at (805) 682-2775 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Peter Nguyen?

    Please contact Dr. Nguyen's office at (805) 682-2775 for information regarding telehealth appointment availability or for scheduling assistance.

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