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Dr. Nishok Karthikeyan, MD

Cleveland, OH

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Karthikeyan, Internist in Cleveland, OH?

    Dr. Nishok Karthikeyan, MD is an Internist, who primarily practices in Cleveland, OH with 2 additional practice locations. Dr. Karthikeyan is fluent in English, Spanish, and Tamil, and is currently seeing new patients. Dr. Karthikeyan’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Karthikeyan’s office at (330) 841-1070.

    What languages does Dr. Karthikeyan speak?

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

    • English
    • Spanish
    • Tamil

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

    As an Internist, Dr. Karthikeyan 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. Karthikeyan. 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:

    • Disorientation
    • Delirium
    • Mental Disorder
    • Confusion
    • Mental Confusion
    • Loss of Bearings

    ICD-10 Codes:

    • R410: Disorientation, unspecified

    Also known as:

    • Mild Cognitive Impairment
    • Cognitive and Awareness Problems
    • Mental Disorder
    • MCI
    • Early Memory Loss
    • Pre-Dementia
    • Mental Function Issues
    • Thinking Problems
    • Awareness Difficulties

    ICD-10 Codes:

    • G3184: Mild cognitive impairment of uncertain or unknown etiology
    • R4189: Other symptoms and signs involving cognitive functions and awareness

    Also known as:

    • Memory Loss
    • Memory
    • Amnesia
    • Forgetfulness
    • Loss of Recall

    ICD-10 Codes:

    • R413: Other amnesia

    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:

    • Repeated Falls
    • Falls
    • Frequent Falling
    • Recurrent Falls
    • Balance Problems Leading to Falls

    ICD-10 Codes:

    • R296: Repeated falls

    Also known as:

    • Muscle Weakness
    • Muscle Disorder
    • Loss of strength
    • Fatigue
    • Muscle fatigue

    ICD-10 Codes:

    • R531: Weakness

    Also known as:

    • Acute Kidney Failure
    • Kidney Failure
    • Acute Renal Failure
    • Sudden Kidney Failure

    ICD-10 Codes:

    • N179: Acute kidney failure, unspecified

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

    As an Internist, Dr. Karthikeyan 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. Karthikeyan. 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:

    • 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. Karthikeyan accept my insurance?

    Dr. Karthikeyan accepts most major insurance plans. Important: Please call our office at (330) 841-1070 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Karthikeyan accept in Cleveland, OH?

    Dr. Karthikeyan in Cleveland, OH accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • CareSource

    • Centene Corporation

    • CVS Health (formerly Aetna)

    • Devoted Health

    • Elevance Health Inc. (formerly Anthem)

    • Humana

    • Medical Mutual of Ohio

    • Medicare

    • State of Ohio

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Karthikeyan's office located?

    Dr. Nishok Karthikeyan's Primary Practice

    9500 Euclid Ave

    Cleveland, OH 44195

    (330) 841-1070

    Get Directions

    Dr. Nishok Karthikeyan's Practice 2

    1350 E Market St

    Warren, OH 44483

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    Dr. Nishok Karthikeyan's Practice 3

    2668 State Route 5 Bldg C

    Cortland, OH 44410

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

    Dr. Karthikeyan's National Provider Identifier (NPI) number is 1376030049.

    What common questions do patients ask about Dr. Karthikeyan?

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

    What is Dr. Nishok Karthikeyan's specialty?

    Dr. Karthikeyan is an Internist near Cleveland, OH.

    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 Dr. Nishok Karthikeyan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Karthikeyan is affiliated with Cleveland Clinic Main Campus, Fairview Hospital, Hillcrest Hospital, Cleveland Clinic - Lutheran 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

    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 Dr. Nishok Karthikeyan accepting new patients in Cleveland, OH?

    Yes, Dr. Nishok Karthikeyan is accepting new patients at this time.

    Does Dr. Nishok Karthikeyan offer online booking?

    Please contact Dr. Karthikeyan's office at (330) 841-1070 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. Nishok Karthikeyan?

    Please contact Dr. Karthikeyan's office at (330) 841-1070 to schedule an appointment.

    Where is Dr. Karthikeyan's office located?

    Dr. Karthikeyan's offices are located in Cleveland, OH, Warren, OH, and Cortland, OH.