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Dr. David Janssen, MD

O Fallon, MO

Accepting patients

    Who is Dr. Janssen, Infectious Disease Specialist in O Fallon, MO?

    Dr. David Janssen, MD is an Infectious Disease Specialist, who primarily practices in O Fallon, MO with 2 additional practice locations. Dr. Janssen graduated from Indiana University School of Medicine and completed his residency at Univ Of Mi Hosps & Hlth Ctrs, Infectious Diseases; St Vincent Hosp Hlthcare Ctr, Internal Medicine. Dr. Janssen is fluent in English and French, and is currently seeing new patients. Dr. Janssen’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Janssen’s office at (636) 344-2014.

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

    • Residency: Univ Of Mi Hosps & Hlth Ctrs, Infectious Diseases; St Vincent Hosp Hlthcare Ctr, Internal Medicine | St Vincent Hospital and Health Care Center Program

    • Medical School: In Univ Sch of Med, Indianapolis In | Indiana University School of Medicine

    What languages does Dr. Janssen speak?

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

    • English

    • French

    What conditions does an Infectious Disease Specialist like Dr. Janssen typically treat?

    As an Infectious Disease Specialist, Dr. Janssen 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. Janssen. 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:

    • HIV
    • Human Immunodeficiency Virus
    • AIDS virus

    ICD-10 Codes:

    • B20: Human immunodeficiency virus [HIV] disease

    Also known as:

    • Blood Infection
    • Sepsis
    • Bacteremia
    • Bacteria in blood
    • Bloodstream infection

    ICD-10 Codes:

    • R7881: Bacteremia

    Also known as:

    • Inflamed Jaw
    • Jaw Injuries and Disorder
    • Jaw Inflammation
    • Jaw Bone Infection
    • Jaw Swelling

    ICD-10 Codes:

    • M272: Inflammatory conditions of jaws

    Also known as:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    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:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

    • Other Surgical Site Infection
    • After Surgery
    • Wounds and Injuries
    • Non-specific surgical infection
    • Other post-operative infection
    • Unspecified surgical wound infection

    ICD-10 Codes:

    • T8149XA: Infection following a procedure, other surgical site, initial encounter

    Also known as:

    • Cellulitis of Left Lower Limb
    • Cellulitis
    • Left Leg Skin Infection
    • Bacterial Left Leg Infection
    • Spreading Left Leg Infection

    ICD-10 Codes:

    • L03116: Cellulitis of left lower limb

    Also known as:

    • Bone Infection
    • Osteomyelitis
    • Infected Bone
    • Bone Inflammation
    • Bone Infection Disease

    ICD-10 Codes:

    • M869: Osteomyelitis, unspecified

    What procedures does an Infectious Disease Specialist like Dr. Janssen typically perform?

    As an Infectious Disease Specialist, procedures performed by Dr. David Janssen may include:

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

    Does Dr. Janssen accept my insurance?

    Dr. Janssen accepts most major insurance plans. Important: Please call our office at (636) 344-2014 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Janssen accept in O Fallon, MO?

    Dr. Janssen in O Fallon, MO 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 Michigan

    • Medicare

    • Unknown

    • Wellmark Blue Cross Blue Shield

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    Where is Dr. Janssen's office located?

    Dr. David Janssen's Primary Practice

    20 Progress Point Pkwy Ste 206

    O Fallon, MO 63368

    (636) 344-2014

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    Tower B

    621 S New Ballas Rd Ste 70B

    Saint Louis, MO 63141

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    Dr. David Janssen's Practice 3

    660 Mason Ridge Center Dr Ste 300

    Saint Louis, MO 63141

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

    Dr. Janssen's National Provider Identifier (NPI) number is 1700995339.

    What common questions do patients ask about Dr. Janssen?

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

    What is Dr. David Janssen's specialty?

    Dr. Janssen is a Infectious Disease Specialist near O Fallon, MO.

    What does an Infectious Disease Specialist do?

    An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

    Is this Dr. David Janssen affiliated with a ranked Castle Connolly Top Hospital?

    No, Janssen is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Parkland Health Center - Farmington. 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 Infectious Disease Specialist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Infectious Disease Specialist. 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 David Janssen accepting new patients in O Fallon, MO?

    Yes, Dr. David Janssen is accepting new patients at this time.

    Does Dr. David Janssen offer online booking?

    Please contact Dr. Janssen's office at (636) 344-2014 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with David Janssen?

    Please contact Dr. Janssen's office at (636) 344-2014 for information regarding telehealth appointment availability or for scheduling assistance.

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