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Dr. Hai Nguyen, MD

Riverside, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Nguyen, Internist in Riverside, CA?

    Dr. Hai Nguyen, MD is an Internist, who primarily practices in Riverside, CA with 2 additional practice locations. He is board certified. Dr. Nguyen is fluent in English and Vietnamese, and is currently seeing new patients. Dr. Nguyen’s practice accepts Cigna, Kaiser Permanente, 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) 389-5800.

    What languages does Dr. Nguyen speak?

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

    • English

    • Vietnamese

    What conditions does Dr. Nguyen treat?

    As a Internist, 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:

    • High Blood Pressure
    • Hypertension
    • Primary Hypertension
    • Essential Hypertension

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    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:

    • Sepsis
    • MSSA Blood Poisoning
    • Staphylococcal Infection
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection
    • MSSA Sepsis
    • Methicillin-Sensitive Staph Sepsis

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism
    • A4101: Sepsis due to Methicillin susceptible Staphylococcus aureus

    Also known as:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Upper body pain

    ICD-10 Codes:

    • R079: Chest pain, unspecified

    Also known as:

    • Urinary Tract Infection
    • UTI
    • Bladder infection
    • Kidney infection
    • Urine infection

    ICD-10 Codes:

    • N390: Urinary tract infection, site not specified

    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:

    • Heart Attack (NSTEMI)
    • Heart Attack
    • Myocardial Infarction
    • Non-STEMI
    • Less Severe Heart Attack

    ICD-10 Codes:

    • I214: Non-ST elevation (NSTEMI) myocardial infarction

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

    • Acute Kidney Failure
    • Kidney Failure
    • Acute Renal Failure
    • Sudden Kidney Failure

    ICD-10 Codes:

    • N179: Acute kidney failure, unspecified

    Also known as:

    • Cellulitis
    • Skin infection
    • Bacterial skin inflammation
    • Acute skin infection

    ICD-10 Codes:

    • L0390: Cellulitis, unspecified

    Also known as:

    • Atrial Fibrillation
    • Afib
    • A-fib
    • Irregular heart rhythm

    ICD-10 Codes:

    • I4891: Unspecified atrial fibrillation

    Also known as:

    • Gastrointestinal Bleeding
    • Gastrointestinal (GI) Bleeding
    • GI Bleeding
    • Internal Digestive Bleeding
    • Digestive Tract Hemorrhage

    ICD-10 Codes:

    • K922: Gastrointestinal hemorrhage, unspecified

    Also known as:

    • Other Brain Blood Vessel Disease
    • Brain Disease
    • Cerebrovascular Disorder
    • Brain Circulation Problem
    • Brain Vascular Condition

    ICD-10 Codes:

    • I6789: Other cerebrovascular disease

    Also known as:

    • Ischemic Stroke
    • Brain Attack
    • Cerebral Infarction
    • Brain Ischemia

    ICD-10 Codes:

    • I639: Cerebral infarction, unspecified

    Also known as:

    • High Blood Pressure Heart Disease with Heart Failure
    • Heart Failure
    • High Blood Pressure
    • Hypertensive Heart Failure
    • High Blood Pressure Causing Heart Failure

    ICD-10 Codes:

    • I110: Hypertensive heart disease with heart failure

    Also known as:

    • Fainting
    • Syncope
    • Passing out
    • Collapse

    ICD-10 Codes:

    • R55: Syncope and collapse

    Also known as:

    • COPD
    • Chronic Obstructive Pulmonary Disease
    • Chronic Lung Disease
    • Emphysema and Chronic Bronchitis

    ICD-10 Codes:

    • J449: Chronic obstructive pulmonary disease, unspecified

    Also known as:

    • Iron Deficiency Anemia
    • Anemia
    • Iron
    • Anemia from Iron Lack
    • Low Iron Anemia
    • Sideropenic Anemia

    ICD-10 Codes:

    • D509: Iron deficiency anemia, unspecified

    Also known as:

    • Dehydration
    • Fluid and Electrolyte Balance
    • Lack of Fluids
    • Fluid Loss
    • Body Water Depletion

    ICD-10 Codes:

    • E860: Dehydration

    Which procedures does Dr. Nguyen perform as a Internist?

    As a Internist, procedures performed by an Dr. Hai Nguyen may include:

    For detailed information, please contact Dr. Nguyen's office.

    Does Dr. Nguyen accept my insurance?

    Dr. Nguyen accepts most major insurance plans. Important: Please call our office at (805) 389-5800 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Nguyen accept in Riverside, CA?

    Dr. Nguyen in Riverside, CA 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

    • Humana

    • Inland Empire

    • Kaiser Permanente

    • Medicare

    • OptumRx

    • Other Health Care Provider

    • Scan Health Plan

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Nguyen's office located?

    Dr. Hai Nguyen's Primary Practice

    4500 Brockton Ave Ste 305

    Riverside, CA 92501

    (805) 389-5800

    Get Directions

    Dr. Hai Nguyen's Practice 2

    2309 Antonio Ave

    Camarillo, CA 93010

    (805) 389-5800

    Get Directions

    Dr. Hai Nguyen's Practice 3

    1600 N Rose Ave

    Oxnard, CA 93030

    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 1558516963.

    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. Hai Nguyen's specialty?

    Dr. Nguyen is a Internist near Riverside, CA.

    A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

    Contact Dr. Nguyen to book an appointment today.

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

    Yes, Dr. Nguyen is affiliated with Loma Linda University Medical Center Murrieta, Southwest Healthcare Rancho Springs Hospital 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

    Where can I learn more about Internist?

    Explore Internist 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 Hai Nguyen accepting new patients in Riverside, CA?

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

    Does Dr. Hai Nguyen offer online booking?

    Please contact Dr. Nguyen's office at (805) 389-5800 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Hai Nguyen?

    Please contact Dr. Nguyen's office at (805) 389-5800 for information regarding telehealth appointment availability or for scheduling assistance.

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