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Dr. Perumal Thiyagarajan, MD

Syosset, NY

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Thiyagarajan, Internist in Syosset, NY?

    Dr. Perumal Thiyagarajan, MD is an Internist, who primarily practices in Syosset, NY with 2 additional practice locations. Dr. Thiyagarajan is fluent in English and Tamil, and is currently seeing new patients. Dr. Thiyagarajan’s practice accepts Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Thiyagarajan’s office at (516) 719-3086.

    What languages does Dr. Thiyagarajan speak?

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

    • English

    • Tamil

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

    As an Internist, Dr. Thiyagarajan 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. Thiyagarajan. 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:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • Joint Replacement Aftercare
    • Hip Replacement
    • Joint Disorder
    • Knee Replacement
    • Post-joint replacement care
    • Joint surgery recovery
    • Orthopedic aftercare

    ICD-10 Codes:

    • Z471: Aftercare following joint replacement surgery

    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:

    • Metabolic Brain Disorder
    • Brain Disease
    • Metabolic Encephalopathy
    • Brain Dysfunction from Metabolism

    ICD-10 Codes:

    • G9341: Metabolic encephalopathy

    Also known as:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    Also known as:

    • Acute Respiratory Failure with Low Oxygen
    • Respiratory Failure
    • Sudden lung failure with low oxygen
    • Hypoxic respiratory failure
    • Acute breathing failure with hypoxia

    ICD-10 Codes:

    • J9601: Acute respiratory failure with hypoxia

    Also known as:

    • High Cholesterol
    • Cholesterol
    • Triglycerides
    • Hyperlipidemia
    • High lipids
    • Dyslipidemia

    ICD-10 Codes:

    • E785: Hyperlipidemia, unspecified

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

    As an Internist, procedures performed by Dr. Perumal Thiyagarajan may include:

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

    Does Dr. Thiyagarajan accept my insurance?

    Dr. Thiyagarajan accepts most major insurance plans. Important: Please call our office at (516) 719-3086 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Thiyagarajan accept in Syosset, NY?

    Dr. Thiyagarajan in Syosset, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Cascade Comprehensive Care

    • Commonwealth Health Corporation (CHC)

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • EmblemHealth

    • Medicaid

    • Medicare

    • UnitedHealth Group

    • Visiting Nurse Service of New York

    View All Insurances

    Where is Dr. Thiyagarajan's office located?

    Dr. Perumal Thiyagarajan's Primary Practice

    221 Jericho Tpke

    Syosset, NY 11791

    (516) 719-3086

    Get Directions

    Dr. Perumal Thiyagarajan's Practice 2

    888 Old Country Rd

    Plainview, NY 11803

    Get Directions

    Dr. Perumal Thiyagarajan's Practice 3

    254 Easton Ave

    New Brunswick, NJ 08901

    Get Directions

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

    Dr. Thiyagarajan's National Provider Identifier (NPI) number is 1760811582.

    What common questions do patients ask about Dr. Thiyagarajan?

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

    What is Dr. Perumal Thiyagarajan's specialty?

    Dr. Thiyagarajan is a Internist near Syosset, NY.

    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 this Dr. Perumal Thiyagarajan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Thiyagarajan is affiliated with North Shore University Hospital, Long Island Jewish Medical Center 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 Perumal Thiyagarajan accepting new patients in Syosset, NY?

    Yes, Dr. Perumal Thiyagarajan is accepting new patients at this time.

    Does Dr. Perumal Thiyagarajan offer online booking?

    Please contact Dr. Thiyagarajan's office at (516) 719-3086 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Perumal Thiyagarajan?

    Please contact Dr. Thiyagarajan's office at (516) 719-3086 for information regarding telehealth appointment availability or for scheduling assistance.

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