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Dr. Jah-Won Koo, MD

Dr. Jah-Won Koo, MD

Lake Forest, IL

24 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Koo, Internist in Lake Forest, IL?

    Dr. Jah-Won Koo, MD is an Internist, who primarily practices in Lake Forest, IL with 2 additional practice locations. He has been practicing for over 24 years and is board certified. Dr. Koo graduated from University Of Cincinnati College Of Medicine and completed his residency at Northwestern Memorial Hospital. Dr. Koo is fluent in English, and is currently seeing new patients. Dr. Koo’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Koo’s office at (312) 563-2875.

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

    • Residency: Northwestern Memorial Hospital

    • Medical School: University Of Cincinnati College Of Medicine

    Is Dr. Koo board certified as an Internist?

    Yes, Dr. Jah-Won Koo, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Koo speak?

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

    • English

    What conditions does Dr. Koo treat?

    As an Internist, Dr. Koo 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. Koo. 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:

    • Routine Adult Health Checkup
    • Health Checkup
    • Adult physical exam
    • Annual wellness visit for adults
    • General adult medical exam

    ICD-10 Codes:

    • Z0000: Encounter for general adult medical examination without abnormal findings

    Also known as:

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

    ICD-10 Codes:

    • Z23: Encounter for immunization

    Also known as:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

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

    ICD-10 Codes:

    • E7800: Pure hypercholesterolemia, unspecified

    Also known as:

    • Type 2 Diabetes
    • Type 2 Diabetes with High Blood Sugar
    • Diabetes Type 2
    • Type 2 diabetes
    • Hyperglycemia
    • Diabetes Mellitus Type 2
    • Adult-Onset Diabetes
    • Non-Insulin Dependent Diabetes
    • Diabetic Hyperglycemia
    • High Blood Glucose
    • High Sugar Levels

    ICD-10 Codes:

    • E119: Type 2 diabetes mellitus without complications
    • E1165: Type 2 diabetes mellitus with hyperglycemia

    Also known as:

    • Mammogram for Breast Cancer Screening
    • Health Screening
    • Mammography
    • Breast Cancer Screening (PDQ®)
    • Mammograms
    • Breast X-ray
    • Breast Cancer Check

    ICD-10 Codes:

    • Z1231: Encounter for screening mammogram for malignant neoplasm of breast

    Also known as:

    • Sexually Transmitted Infection (STI) Screening
    • Screening for Other Viral Disease
    • Health Screening
    • STD screening
    • Sexual health check
    • Venereal disease test
    • Other Viral Infection Screening
    • Miscellaneous Virus Test
    • Non-COVID Viral Screening

    ICD-10 Codes:

    • Z113: Encounter for screening for infections with a predominantly sexual mode of transmission
    • Z1159: Encounter for screening for other viral diseases

    Also known as:

    • Exposure to HIV
    • HIV
    • HIV contact
    • Suspected HIV exposure
    • Human immunodeficiency virus exposure

    ICD-10 Codes:

    • Z206: Contact with and (suspected) exposure to human immunodeficiency virus [HIV]

    Also known as:

    • Other Specific Abnormal Blood Chemistry Results
    • Blood
    • Specified Blood Chemistry Imbalance
    • Unusual Blood Chemistry Findings
    • Specific Blood Panel Abnormalities

    ICD-10 Codes:

    • R7989: Other specified abnormal findings of blood chemistry

    Also known as:

    • Generalized Anxiety Disorder
    • Anxiety
    • GAD
    • Chronic Worry
    • Excessive Worry Disorder

    ICD-10 Codes:

    • F411: Generalized anxiety disorder

    Also known as:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Pectoral pain

    ICD-10 Codes:

    • R0789: Other chest pain

    Also known as:

    • Anxiety Disorder
    • Anxiety
    • General Anxiety
    • Anxiety Problems
    • Nervous Disorder

    ICD-10 Codes:

    • F419: Anxiety disorder, unspecified

    Also known as:

    • Anemia
    • Low Red Blood Cell Count
    • Low Hemoglobin
    • Iron deficiency

    ICD-10 Codes:

    • D649: Anemia, unspecified

    Also known as:

    • Other Pre-Procedure Examination
    • Various pre-op checks
    • Miscellaneous pre-surgery exams
    • Other pre-treatment assessments

    ICD-10 Codes:

    • Z01818: Encounter for other preprocedural examination

    Also known as:

    • Travel Health Counseling
    • Traveler's Health
    • Travel medicine consultation
    • Pre-travel health advice
    • International travel health

    ICD-10 Codes:

    • Z7184: Encounter for health counseling related to travel

    Also known as:

    • Snoring
    • Loud breathing during sleep
    • Noisy sleep
    • Obstructive snoring

    ICD-10 Codes:

    • R0683: Snoring

    Also known as:

    • Elevated PSA Level
    • Prostate Cancer Screening
    • Prostate Disease
    • Prostate-Specific Antigen (PSA) Test
    • Prostate Problems
    • High Prostate Specific Antigen
    • Abnormal PSA Test
    • Increased PSA

    ICD-10 Codes:

    • R9720: Elevated prostate specific antigen [PSA]

    Also known as:

    • Single Lung Nodule
    • Lung Disease
    • Lung Spot
    • Pulmonary Nodule
    • Spot on Lung Scan

    ICD-10 Codes:

    • R911: Solitary pulmonary nodule

    What procedures does Dr. Koo perform?

    As an Internist, Dr. Koo performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Koo. 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:

    • Liver Elastography
    • Elastography
    • FibroScan
    • Liver stiffness test
    • Shear wave elastography

    CPT Codes:

    • 91200: Liver elastography, mechanically induced shear wave (eg, vibration), without imaging, with interpretation and report

    Does Dr. Koo accept my insurance?

    Dr. Koo accepts most major insurance plans. Important: Please call our office at (312) 563-2875 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Koo accept in Lake Forest, IL?

    Dr. Koo in Lake Forest, IL 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)

    • Express Scripts

    • Federal Employee Program

    • Health Care Service Corporation (HCSC)

    • Humana

    • Medicare

    • State of Nevada

    • State of Tennessee

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Koo's office located?

    Dr. Jah-Won Koo's Primary Practice

    660 N Westmoreland Rd # 302

    Lake Forest, IL 60045

    (312) 563-2875

    Get Directions

    Dr. Jah-Won Koo's Practice 2

    885 Roosevelt Rd

    Glen Ellyn, IL 60137

    Get Directions

    Dr. Jah-Won Koo's Practice 3

    675 N Saint Clair St

    Chicago, IL 60611

    Get Directions

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

    Dr. Koo's National Provider Identifier (NPI) number is 1235241837.

    What common questions do patients ask about Dr. Koo?

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

    What is Dr. Jah-Won Koo's specialty?

    Dr. Koo is a Internist near Lake Forest, IL.

    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. Koo to book an appointment today.

    Is this Dr. Jah-Won Koo affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Koo is affiliated with Northwestern Memorial Hospital, Northwestern Medicine Palos Hospital, Northwestern Medicine Lake Forest Hospital, Northwestern Medicine McHenry Hospital, Rush University Medical Center, Northwestern Medicine Kishwaukee 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 Jah-Won Koo accepting new patients in Lake Forest, IL?

    Yes, Dr. Jah-Won Koo is accepting new patients at this time.

    Does Dr. Jah-Won Koo offer online booking?

    Please contact Dr. Koo's office at (312) 563-2875 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Jah-Won Koo?

    Please contact Dr. Koo's office at (312) 563-2875 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Jah-Won Koo have?

    Dr. Jah-Won Koo is certified by the American Board of Internal Medicine.

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