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Dr. Brian Nagai, MD

Dr. Brian Nagai, MD

Diagnostic Radiologist

Fremont, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Nagai, Diagnostic Radiologist in Fremont, CA?

    Dr. Brian Nagai, MD is a Diagnostic Radiologist, who primarily practices in Fremont, CA with 2 additional practice locations. He is board certified. Dr. Nagai graduated from Stanford University School of Medicine and completed his residency at St Mary's Hospital Med Center. He is a member of the American College of Radiology, American Roentgen Ray Society, Radiological Society of North America, and American Society of Neuroradiology. Dr. Nagai is fluent in English, and is currently seeing new patients. Dr. Nagai’s practice accepts Kaiser Permanente, Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nagai’s office at (510) 490-1222.

    Where did Dr. Nagai go to medical school and complete their residency?

    • Fellowship: U/CA San Francisco Prog, San Francisco, CA,, Neuroradiology | DIAGNOSTIC NEURORADIOLOGY, UNIVERSITY OF CALIFORNIA, SAN FRANCISCO HOSP AND CLINICS, SAN FRANCISCO, CA | University of California / San Francisco, CA, Neuroradiology | (Neuroradiology (Radiology)), UNIVERSITY OF CALIFORNIA, SAN FRANCISCO, SAN FRANCISCO, CA

    • Residency: St Mary's Hospital Med Center | University of California, San Francisco | St Mary's Hospital and Medical Center Program

    • Medical School: Stanford University School of Medicine

    Is Dr. Nagai board certified as a Diagnostic Radiologist?

    Yes, Dr. Brian Nagai, MD is board certified by the American Board of Radiology , American Board of Radiology since 2002, American Board of Radiology since 2012

    What languages does Dr. Nagai speak?

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

    • English

    What conditions does a Diagnostic Radiologist like Dr. Nagai typically treat?

    As a Diagnostic Radiologist, Dr. Nagai 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. Nagai. 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. Learn more about our claims-based healthcare methodology.

    Also known as:

    • Cough
    • Coughing
    • Persistent cough
    • Chronic cough

    ICD-10 Codes:

    • R059: Cough, unspecified

    Also known as:

    • Other Abnormal Findings on Lung Scan
    • Unusual Lung Scan Results
    • Atypical Lung Imaging
    • Nonspecific Lung Abnormality

    ICD-10 Codes:

    • R918: Other nonspecific abnormal finding of lung field

    Also known as:

    • Fatty Liver Disease
    • Liver Disease
    • Nonalcoholic Fatty Liver Disease (NAFLD) & NASH
    • Nonalcoholic Fatty Liver Disease & NASH in Children
    • NAFLD
    • NASH
    • Hepatic steatosis

    ICD-10 Codes:

    • K760: Fatty (change of) liver, not elsewhere classified

    Also known as:

    • Nontoxic Multinodular Goiter
    • Thyroid Disease
    • Multinodular Goiter
    • Lumpy Enlarged Thyroid

    ICD-10 Codes:

    • E042: Nontoxic multinodular goiter

    Also known as:

    • Headache
    • Head pain
    • Cephalalgia
    • Tension headache

    ICD-10 Codes:

    • R519: Headache, unspecified

    Also known as:

    • Abdominal Pain
    • Stomach Ache
    • Belly Pain
    • Stomach Pain

    ICD-10 Codes:

    • R109: Unspecified abdominal pain

    Also known as:

    • Acquired Kidney Cyst
    • Kidney Cysts
    • Acquired Cystic Kidney Disease
    • Renal Cyst
    • Simple Kidney Cyst

    ICD-10 Codes:

    • N281: Cyst of kidney, acquired

    Also known as:

    • Elevated PSA Level
    • Prostate Cancer Screening
    • Prostate Disease
    • Prostate-Specific Antigen (PSA) Test
    • Prostate Problems
    • High Prostate Specific Antigen
    • Abnormal PSA Test
    • Increased PSA

    ICD-10 Codes:

    • R9720: Elevated prostate specific antigen [PSA]

    What procedures does a Diagnostic Radiologist like Dr. Nagai typically perform?

    As a Diagnostic Radiologist, procedures performed by Dr. Brian Nagai may include:

    Please contact Dr. Nagai's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

    Does Dr. Nagai accept my insurance?

    Dr. Nagai accepts most major insurance plans. Important: Please call our office at (510) 490-1222 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Nagai accept in Fremont, CA?

    Dr. Nagai in Fremont, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Alignment Healthcare

    • Centene Corporation

    • Corporate Services

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Other Health Care Provider

    • State of California

    • Sutter Health

    • UnitedHealth Group

    • Valley Health Plan

    View All Insurances

    Where is Dr. Nagai's office located?

    Dr. Brian Nagai's Primary Practice

    3200 Kearney St

    Fremont, CA 94538

    (510) 490-1222

    Get Directions

    Dr. Brian Nagai's Practice 2

    504 Redwood Blvd Ste 300

    Novato, CA 94947

    Get Directions

    Dr. Brian Nagai's Practice 3

    250 Bon Air Rd

    Kentfield, CA 94904

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    Recognitions

    Memberships & Associations

    American College of Radiology

    Member

    American Roentgen Ray Society

    Member

    Radiological Society of North America

    Member

    American Society of Neuroradiology

    Member

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

    Dr. Nagai's National Provider Identifier (NPI) number is 1467493536.

    What common questions do patients ask about Dr. Nagai?

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

    What is Dr. Brian Nagai's specialty?

    Dr. Nagai is a Diagnostic Radiologist near Fremont, CA.

    What does a Diagnostic Radiologist do?

    A radiologist is a medical doctor who specializes in using imaging technologies to diagnose, manage, and treat various medical conditions. Radiologists typically focus on Diagnostic Radiology, Interventional Radiology, or Radiation Oncology, and may also obtain certifications in a range of subspecialties, such as neuroradiology, musculoskeletal radiology, or pediatric radiology. Additionally, board certifications are available in Medical Physics, which ensures the safe and effective use of radiation in imaging and treatment. Radiologists collaborate with other healthcare professionals to interpret imaging results and help guide patient care decisions.

    Is Dr. Brian Nagai affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Nagai is affiliated with Stanford Health Care - Stanford Hospital, Mills-Peninsula Medical Center, Washington Hospital Healthcare System, Uc Davis Medical Center which are a Castle Connolly Top Hospitals. 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

    When to see a Diagnostic Radiologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Diagnostic Radiologist. Explore 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 Dr. Brian Nagai accepting new patients in Fremont, CA?

    Yes, Dr. Brian Nagai is accepting new patients at this time.

    Does Dr. Brian Nagai offer online booking?

    Please contact Dr. Nagai's office at (510) 490-1222 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. Brian Nagai?

    Please contact Dr. Nagai's office at (510) 490-1222 to schedule an appointment.

    Where is Dr. Nagai's office located?

    Dr. Nagai's offices are located in Fremont, CA, Novato, CA, and Kentfield, CA.

    Which board certifications does Dr. Brian Nagai have?

    Dr. Brian Nagai is certified by the American Board of Radiology.