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Dr. Ian Carlo Casimiro, MD

Ontario, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Casimiro, Internist in Ontario, CA?

    Dr. Ian Carlo Casimiro, MD is an Internist, who primarily practices in Ontario, CA with 1 additional practice location. He is board certified. Dr. Casimiro is fluent in English, and is currently seeing new patients. Dr. Casimiro’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Casimiro’s office.

    Is Dr. Casimiro board certified as an Internist?

    Yes, Dr. Ian Carlo Casimiro, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Casimiro speak?

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

    • English

    What conditions does an Internist like Dr. Casimiro typically treat?

    As an Internist, Dr. Casimiro 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. Casimiro. 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:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    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:

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

    ICD-10 Codes:

    • I639: Cerebral infarction, unspecified

    Also known as:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    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:

    • 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:

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

    ICD-10 Codes:

    • U071: COVID-19

    What procedures does an Internist like Dr. Casimiro typically perform?

    As an Internist, procedures performed by Dr. Ian Carlo Casimiro may include:

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

    Does Dr. Casimiro accept my insurance?

    Dr. Casimiro accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Casimiro accept in Ontario, CA?

    Dr. Casimiro in Ontario, 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

    • CVS Health (formerly Aetna)

    • HealthRight Group

    • Heritage Health

    • Inland Faculty Medical Group, Inc

    • Kaiser Permanente

    • Medicare

    • Not Specified

    • Other Health Care Provider

    • Unknown

    View All Insurances

    Where is Dr. Casimiro's office located?

    Dr. Ian Carlo Casimiro's Primary Practice

    2295 S Vineyard Ave

    Ontario, CA 91761

    Get Directions

    Dr. Ian Carlo Casimiro's Practice 2

    9961 Sierra Ave

    Fontana, CA 92335

    Get Directions

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

    Dr. Casimiro's National Provider Identifier (NPI) number is 1881857969.

    What common questions do patients ask about Dr. Casimiro?

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

    What is Dr. Ian Carlo Casimiro's specialty?

    Dr. Casimiro is a Internist near Ontario, CA.

    What does an Internist do?

    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.

    Is this Dr. Ian Carlo Casimiro affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Casimiro is affiliated with Kaiser Permanente Fontana Medical Center, San Antonio Regional 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

    When to see an Internist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Internist. 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 Ian Carlo Casimiro accepting new patients in Ontario, CA?

    Yes, Dr. Ian Carlo Casimiro is accepting new patients at this time.

    Does Dr. Ian Carlo Casimiro offer online booking?

    Please contact Dr. Casimiro's office for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Ian Carlo Casimiro?

    Please contact Dr. Casimiro's office for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Ian Carlo Casimiro have?

    Dr. Ian Carlo Casimiro is certified by the American Board of Internal Medicine.

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