EverydayHealthLogo
Dr. Jason Hatjioannou, MD

Dr. Jason Hatjioannou, MD

Johnson City, TN

35 Years of Experience

Accepting patients

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

    Dr. Jason Hatjioannou, MD is an Internist, who primarily practices in Johnson City, TN with 1 additional practice location. He has been practicing for over 35 years and is board certified. Dr. Hatjioannou graduated from American University of The Caribbean; Plymouth, Montserrat and completed his residency at E Tn U-J H Quillen Coll Med, Internal Medicine. Dr. Hatjioannou is fluent in English, Italian, and Japanese, and is currently seeing new patients. Dr. Hatjioannou’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Hatjioannou’s office at (423) 794-5520.

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

    • Residency: E Tn U-J H Quillen Coll Med, Internal Medicine | Quillen Dishner Coll Med | East Tennessee State University (ETSU) Affiliated Hospitals | East Tennessee State University Program

    • Medical School: American Univ Of The Caribbean- Sch Of Med- Plymouth- Montserrat | American University of The Caribbean / School of Medicine | American University of The Caribbean; Plymouth, Montserrat | American University of The Caribbean / School of Medicine

    Is Dr. Hatjioannou board certified as an Internist?

    Yes, Dr. Jason Hatjioannou, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Hatjioannou speak?

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

    • English

    • Italian

    • Japanese

    What conditions does Dr. Hatjioannou treat?

    As an Internist, Dr. Hatjioannou 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. Hatjioannou. 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:

    • Immunization Visit
    • Vaccines
    • Vaccination appointment
    • Shot visit
    • Immunization encounter

    ICD-10 Codes:

    • Z23: Encounter for immunization

    Also known as:

    • Type 2 Diabetes
    • Type 2 Diabetes with High Blood Sugar
    • Diabetes Type 2
    • Type 2 diabetes
    • Diabetes Complicationss
    • Hyperglycemia
    • Diabetes Mellitus Type 2
    • Adult-Onset Diabetes
    • Non-Insulin Dependent Diabetes
    • Diabetes Mellitus Complications
    • Diabetes Related Health Problems
    • Advanced Diabetes
    • Diabetic Hyperglycemia
    • High Blood Glucose
    • High Sugar Levels

    ICD-10 Codes:

    • E119: Type 2 diabetes mellitus without complications
    • E1169: Type 2 diabetes mellitus with other specified complication
    • E1165: Type 2 diabetes mellitus with hyperglycemia

    Also known as:

    • Adult Health Checkup with Abnormal Findings
    • Health Checkup
    • Adult Physical Exam with Issues
    • Routine Checkup with Concerns
    • General Medical Exam with Abnormal Results

    ICD-10 Codes:

    • Z0001: Encounter for general adult medical examination with abnormal findings

    Also known as:

    • Hardening of the Arteries in the Heart without Chest Pain
    • Atherosclerosis
    • Coronary Artery Disease
    • Silent Coronary Artery Disease
    • Asymptomatic Atherosclerosis

    ICD-10 Codes:

    • I2510: Atherosclerotic heart disease of native coronary artery without angina pectoris

    Also known as:

    • High Cholesterol
    • Cholesterol
    • Hypercholesterolemia
    • High blood cholesterol
    • Elevated cholesterol

    ICD-10 Codes:

    • E7800: Pure hypercholesterolemia, unspecified

    Also known as:

    • Urinary and Genital Symptoms
    • Urine and Urination
    • Genitourinary signs
    • Urogenital symptoms
    • Reproductive and urinary issues

    ICD-10 Codes:

    • R399: Unspecified symptoms and signs involving the genitourinary system

    Also known as:

    • Heart Palpitations
    • Arrhythmia
    • Skipped Heartbeat
    • Fluttering Heart
    • Pounding Heart

    ICD-10 Codes:

    • R002: Palpitations

    Which procedures does Dr. Hatjioannou perform as an Internist?

    As an Internist, procedures performed by Dr. Jason Hatjioannou may include:

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

    Does Dr. Hatjioannou accept my insurance?

    Dr. Hatjioannou 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. Hatjioannou accept in Johnson City, TN?

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

    Top Insurances

    • Medicare

    View All Insurances

    Where is Dr. Hatjioannou's office located?

    Dr. Jason Hatjioannou's Primary Practice

    301 Med Tech Pkwy Ste 240

    Johnson City, TN 37604

    (423) 794-5520

    Get Directions

    Dr. Jason Hatjioannou's Practice 2

    313 Princeton Rd Ste 3

    Johnson City, TN 37601

    Get Directions

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

    Dr. Hatjioannou's National Provider Identifier (NPI) number is 1740285923.

    What common questions do patients ask about Dr. Hatjioannou?

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

    What is Dr. Jason Hatjioannou's specialty?

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

    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. Hatjioannou to book an appointment today.

    Is this Dr. Jason Hatjioannou affiliated with a ranked Castle Connolly Top Hospital?

    No, Hatjioannou is not affiliated with a Castle Connolly Top 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

    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 Jason Hatjioannou accepting new patients in Johnson City, TN?

    Yes, Dr. Jason Hatjioannou is accepting new patients at this time.

    Does Dr. Jason Hatjioannou offer online booking?

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

    How can I make an appointment with Jason Hatjioannou?

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

    Which board certifications does Dr. Jason Hatjioannou have?

    Dr. Jason Hatjioannou is certified by the American Board of Internal Medicine.

    Other Internist Near Johnson City, TN

    acceptingPatients-iconAccepting patients
    Johnson City, TN
    acceptingPatients-iconAccepting patients
    Johnson City, TN
    acceptingPatients-iconAccepting patients
    Johnson City, TN
    See All Specialists

    Doctors by Category

    Specialists