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Dr. Kent Alexander Cassmeyer, MD

O Fallon, MO

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Cassmeyer, Internist in O Fallon, MO?

    Dr. Kent Alexander Cassmeyer, MD is an Internist, who primarily practices in O Fallon, MO with 2 additional practice locations. Dr. Cassmeyer is fluent in English, and is currently seeing new patients. Dr. Cassmeyer’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Cassmeyer’s office.

    What languages does Dr. Cassmeyer speak?

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

    • English

    What conditions does Dr. Cassmeyer treat?

    As an Internist, Dr. Cassmeyer 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. Cassmeyer. 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:

    • 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:

    • 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:

    • 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:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    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:

    • Acute Bronchitis
    • Chest cold
    • Short-term bronchitis
    • Acute chest infection

    ICD-10 Codes:

    • J209: Acute bronchitis, unspecified

    Also known as:

    • Patient Refused Vaccination
    • Vaccine refusal
    • Refusal to vaccinate
    • Immunization refusal

    ICD-10 Codes:

    • Z2821: Immunization not carried out because of patient refusal

    Also known as:

    • Heart Palpitations
    • Atrial Fibrillation
    • Arrhythmia
    • Skipped Heartbeat
    • Fluttering Heart
    • Pounding Heart
    • Afib
    • A-fib
    • Irregular heart rhythm

    ICD-10 Codes:

    • R002: Palpitations
    • I480: Paroxysmal atrial fibrillation

    Also known as:

    • Low Back Pain
    • Back Pain
    • Lumbago
    • Lower Back Ache
    • Backache

    ICD-10 Codes:

    • M5450: Low back pain, unspecified

    Also known as:

    • Common Cold
    • Upper Respiratory Infection
    • Head Cold
    • Cold Symptoms

    ICD-10 Codes:

    • J069: Acute upper respiratory infection, unspecified

    Also known as:

    • Acute Maxillary Sinus Infection
    • Sinusitis
    • Acute maxillary sinusitis
    • Short-term cheekbone sinus infection
    • Maxillary sinus inflammation

    ICD-10 Codes:

    • J0100: Acute maxillary sinusitis, unspecified

    Also known as:

    • Chronic Sinusitis
    • Sinusitis
    • Chronic sinus infection
    • Long-term sinus problems
    • Persistent sinus inflammation

    ICD-10 Codes:

    • J329: Chronic sinusitis, unspecified

    Also known as:

    • Urinary Device Fitting and Adjustment
    • Urological Device Fitting
    • Bladder Device Adjustment
    • Catheter Fitting

    ICD-10 Codes:

    • Z466: Encounter for fitting and adjustment of urinary device

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

    • One-Sided Weakness or Paralysis After Ischemic Stroke
    • Paralysis
    • Stroke
    • Post-ischemic stroke hemiplegia
    • Partial paralysis from ischemic stroke
    • Ischemic stroke-related body weakness
    • Hemiparesis after brain infarction

    ICD-10 Codes:

    • I69351: Hemiplegia and hemiparesis following cerebral infarction affecting right dominant side

    Also known as:

    • Age-Related Osteoporosis
    • Fractures
    • Osteoporosis
    • Senile Osteoporosis
    • Primary Osteoporosis
    • Bone Thinning from Aging

    ICD-10 Codes:

    • M810: Age-related osteoporosis without current pathological fracture

    Also known as:

    • Mixed High Cholesterol and Triglycerides
    • Cholesterol
    • Triglycerides
    • Mixed hyperlipidemia
    • Combined hyperlipidemia
    • High lipids

    ICD-10 Codes:

    • E782: Mixed hyperlipidemia

    What procedures does Dr. Cassmeyer perform?

    As an Internist, Dr. Cassmeyer 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. Cassmeyer. 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:

    • Individual Speech and Language Therapy
    • Speech-Language Pathology
    • Voice Therapy
    • Communication Disorder Treatment
    • Auditory Processing Therapy

    CPT Codes:

    • 92507: Treatment Of Speech, Language, Voice, Communication, And/Or Auditory Processing Disorder; Individual

    Does Dr. Cassmeyer accept my insurance?

    Dr. Cassmeyer 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. Cassmeyer accept in O Fallon, MO?

    Dr. Cassmeyer 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

    • Carpenters Funds Administrative Office (CA)

    • CVS Health (formerly Aetna)

    • Express Scripts

    • HealthComp

    • Medicare

    • Mutual of Omaha

    • State of Tennessee

    • Sterling Jewelers

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Cassmeyer's office located?

    Dr. Kent Alexander Cassmeyer's Primary Practice

    300 Winding Woods Dr Ste 214

    O Fallon, MO 63366

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    Dr. Kent Alexander Cassmeyer's Practice 2

    621 S New Ballas Rd Ste 4017B

    Saint Louis, MO 63141

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    Dr. Kent Alexander Cassmeyer's Practice 3

    7212 Balson Ave

    Saint Louis, MO 63130

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

    Dr. Cassmeyer's National Provider Identifier (NPI) number is 1417307505.

    What common questions do patients ask about Dr. Cassmeyer?

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

    What is Dr. Kent Alexander Cassmeyer's specialty?

    Dr. Cassmeyer is a Internist near O Fallon, MO.

    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. Cassmeyer to book an appointment today.

    Is this Dr. Kent Alexander Cassmeyer affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Cassmeyer is affiliated with Mercy Hospital St. Louis, Barnes-Jewish St. Peters Hospital, Mercy Hospital Lincoln, Missouri Baptist Medical Center, Barnes-Jewish West County Hospital, SSM Health St. Joseph Hospital - Lake Saint Louis 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 Kent Alexander Cassmeyer accepting new patients in O Fallon, MO?

    Yes, Dr. Kent Alexander Cassmeyer is accepting new patients at this time.

    Does Dr. Kent Alexander Cassmeyer offer online booking?

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

    How can I make an appointment with Kent Alexander Cassmeyer?

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

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