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Dr. Sergio Diaz, MD

Johnson City, TN

Accepting patients

    Who is Dr. Diaz, Internist in Johnson City, TN?

    Dr. Sergio Diaz, MD is an Internist, who primarily practices in Johnson City, TN. He is board certified. Dr. Diaz is fluent in English and Spanish, and is currently seeing new patients. Dr. Diaz’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Diaz’s office at (423) 794-5520.

    Is Dr. Diaz board certified as an Internist?

    Yes, Dr. Sergio Diaz, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Diaz speak?

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

    • English

    • Spanish

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

    As an Internist, Dr. Diaz 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. Diaz. 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 here.

    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:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    Also known as:

    • Sudden Bladder Inflammation with Blood in Urine
    • Bladder Disease
    • Urine and Urination
    • Acute Bladder Infection with Blood
    • Cystitis with Hematuria
    • Bloody Urine from Bladder Infection

    ICD-10 Codes:

    • N3001: Acute cystitis with hematuria

    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:

    • Acute Bladder Infection
    • Bladder Disease
    • Acute Cystitis
    • Sudden Bladder Infection

    ICD-10 Codes:

    • N3000: Acute cystitis without hematuria

    Also known as:

    • Intestinal Obstruction
    • Bowel Obstruction
    • Blocked Intestines
    • Gut Blockage

    ICD-10 Codes:

    • K56609: Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction

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

    As an Internist, procedures performed by Dr. Sergio Diaz may include:

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

    Does Dr. Diaz accept my insurance?

    Dr. Diaz accepts most major insurance plans. Important: Please call our office at (423) 794-5520 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Diaz accept in Johnson City, TN?

    Dr. Diaz in Johnson City, TN accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Blue Cross Blue Shield of Tennessee

    • Cigna Group

    • Community Care Network

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Humana

    • Medicare

    • UnitedHealth Group

    • Unknown

    View All Insurances

    Where is Dr. Diaz's office located?

    Dr. Sergio Diaz's Primary Practice

    301 Med Tech Pkwy

    Johnson City, TN 37604

    (423) 794-5520

    Get Directions

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

    Dr. Diaz's National Provider Identifier (NPI) number is 1417138439.

    What common questions do patients ask about Dr. Diaz?

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

    What is Dr. Sergio Diaz's specialty?

    Dr. Diaz is a Internist near Johnson City, TN.

    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. Sergio Diaz affiliated with a ranked Castle Connolly Top Hospital?

    No, Diaz is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Franklin Woods Community Hospital, Johnson City Medical Center, Sycamore Shoals Hospital. Castle Connolly Top Hospitals 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 Sergio Diaz accepting new patients in Johnson City, TN?

    Yes, Dr. Sergio Diaz is accepting new patients at this time.

    Does Dr. Sergio Diaz offer online booking?

    Please contact Dr. Diaz's office at (423) 794-5520 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Sergio Diaz?

    Please contact Dr. Diaz's office at (423) 794-5520 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Sergio Diaz have?

    Dr. Sergio Diaz is certified by the American Board of Internal Medicine.

    <section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>