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Dr. Douglas Do, MD

Fontana, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Do, Internist in Fontana, CA?

    Dr. Douglas Do, MD is an Internist, who primarily practices in Fontana, CA with 2 additional practice locations. He is board certified by the American Board of Internal Medicine. Dr. Do is fluent in English, and is currently seeing new patients. Dr. Do’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Do’s office at (808) 974-7116.

    Is Dr. Do board certified in Internist?

    Yes, Dr. Douglas Do, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Do speak?

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

    • English

    What conditions does Dr. Do treat?

    As a Internist, Dr. Do 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. Do. 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:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    Also known as:

    • Acute Respiratory Failure with Low Oxygen
    • Acute and Chronic Respiratory Failure with Low Oxygen
    • Respiratory Failure
    • Sudden lung failure with low oxygen
    • Hypoxic respiratory failure
    • Acute breathing failure with hypoxia
    • Sudden and Long-Term Lung Failure with Low Oxygen
    • Acute and Chronic Hypoxic Respiratory Failure
    • Ongoing Breathing Failure with Low Oxygen

    ICD-10 Codes:

    • J9601: Acute respiratory failure with hypoxia
    • J9621: Acute and chronic respiratory failure with hypoxia

    Also known as:

    • COVID-19
    • COVID-19 (Coronavirus Disease 2019)
    • Coronavirus Disease 2019
    • SARS-CoV-2 Infection
    • Novel Coronavirus

    ICD-10 Codes:

    • U071: COVID-19

    Also known as:

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

    ICD-10 Codes:

    • I639: Cerebral infarction, unspecified

    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:

    • 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:

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

    ICD-10 Codes:

    • I4891: Unspecified atrial fibrillation

    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:

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

    ICD-10 Codes:

    • K922: Gastrointestinal hemorrhage, unspecified

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • Brain disease (encephalopathy)
    • Brain Disease
    • Brain disorder
    • Brain dysfunction
    • Encephalopathy

    ICD-10 Codes:

    • G9340: Encephalopathy, unspecified

    Also known as:

    • Fainting
    • Syncope
    • Passing out
    • Collapse

    ICD-10 Codes:

    • R55: Syncope and collapse

    Also known as:

    • Acute Pancreatitis
    • Pancreatitis
    • Sudden Pancreas Inflammation
    • Acute Pancreas Attack

    ICD-10 Codes:

    • K8590: Acute pancreatitis without necrosis or infection, unspecified

    Also known as:

    • COPD Flare-Up
    • COPD
    • COPD Exacerbation
    • Chronic Obstructive Pulmonary Disease Flare-Up
    • Worsening COPD
    • COPD Attack

    ICD-10 Codes:

    • J441: Chronic obstructive pulmonary disease with (acute) exacerbation

    Also known as:

    • Low Sodium Levels
    • Fluid and Electrolyte Balance
    • Sodium
    • Hyponatremia
    • Low Blood Sodium
    • Sodium Deficiency

    ICD-10 Codes:

    • E871: Hypo-osmolality and hyponatremia

    Also known as:

    • Worsening Chronic Systolic Heart Failure
    • Heart Failure
    • Acute Decompensated HFrEF
    • Sudden Worsening Heart Failure
    • Acute on Chronic Pumping Heart Failure

    ICD-10 Codes:

    • I5023: Acute on chronic systolic (congestive) heart failure

    Also known as:

    • Metabolic Brain Disorder
    • Brain Disease
    • Metabolic Encephalopathy
    • Brain Dysfunction from Metabolism

    ICD-10 Codes:

    • G9341: Metabolic encephalopathy

    Also known as:

    • Nausea and Vomiting
    • Feeling Sick and Throwing Up
    • Stomach Flu Symptoms
    • Queasy and Vomiting

    ICD-10 Codes:

    • R112: Nausea with vomiting, unspecified

    Which procedures does Dr. Do perform as a Internist?

    As a Internist, procedures performed by an Dr. Douglas Do may include:

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

    Does Dr. Do accept my insurance?

    Dr. Do accepts most major insurance plans. Important: Please call our office at (808) 974-7116 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Do accept in Fontana, CA?

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

    Top Insurances

    • All Other Third Party

    • Blue Shield of California

    • CVS Health (formerly Aetna)

    • Inland Empire

    • Inland Faculty Medical Group, Inc

    • Kaiser Permanente

    • Medicare

    • Other Health Care Provider

    • Scan Health Plan

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Do's office located?

    Dr. Douglas Do's Primary Practice

    9961 Sierra Ave

    Fontana, CA 92335

    (808) 974-7116

    Get Directions

    Dr. Douglas Do's Practice 2

    2500 Grant Rd

    Mountain View, CA 94040

    Get Directions

    Dr. Douglas Do's Practice 3

    1190 Waianuenue Ave

    Hilo, HI 96720

    Get Directions

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

    Dr. Do's National Provider Identifier (NPI) number is 1265732622.

    What common questions do patients ask about Dr. Do?

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

    What is Dr. Douglas Do's specialty?

    Dr. Do is a Internist near Fontana, 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. Do to book an appointment today.

    Is this Dr. Douglas Do affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Do is affiliated with Kaiser Permanente Fontana Medical Center 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 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 Douglas Do accepting new patients in Fontana, CA?

    Yes, Dr. Douglas Do is accepting new patients at this time.

    Does Dr. Douglas Do offer online booking?

    Please contact Dr. Do's office at (808) 974-7116 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Douglas Do?

    Please contact Dr. Do's office at (808) 974-7116 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Douglas Do have?

    Dr. Douglas Do is certified by the American Board of Internal Medicine.

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