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Dr. Sean Cloonan, MD

Harrison, NY

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Cloonan, Infectious Disease Specialist in Harrison, NY?

    Dr. Sean Cloonan, MD is an Infectious Disease Specialist, who primarily practices in Harrison, NY with 1 additional practice location. He is board certified. Dr. Cloonan is fluent in English and Spanish, and is currently seeing new patients. Dr. Cloonan’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Cloonan’s office at (914) 723-8100.

    What are Areas of Expertise for Dr. Cloonan?

    Dr. Sean Cloonan, MD is a highly-rated, board-certified Infectious Disease Specialist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Cloonan empowers patients to confidently navigate their health journey, specializing in Diabetic Leg/Foot Infections, Hepatitis C, HIV, HIV & Hepatitis co-infection, Tick-borne Diseases, Travel Medicine, or comprehensive wellness support. Serving the Harrison/NY community, Dr. Cloonan is dedicated to enhancing lives through expert, patient-centered care.

    What languages does Dr. Cloonan speak?

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

    • English

    • Spanish

    What conditions does Dr. Cloonan treat?

    As a Infectious Disease Specialist, Dr. Cloonan 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. Cloonan. 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:

    • Superficial Chronic Skin Ulcer on Lower Left Leg
    • Superficial Chronic Skin Ulcer on Right Lower Leg
    • Chronic Skin Ulcer on Right Lower Leg
    • Skin Condition
    • Open Sore on Leg
    • Skin Wound on Leg
    • Non-healing Wound
    • Non-Pressure Leg Sore
    • Persistent Leg Wound
    • Right Leg Skin Ulcer
    • Open Sore on Lower Leg

    ICD-10 Codes:

    • L97821: Non-pressure chronic ulcer of other part of left lower leg limited to breakdown of skin
    • L97811: Non-pressure chronic ulcer of other part of right lower leg limited to breakdown of skin
    • L97818: Non-pressure chronic ulcer of other part of right lower leg with other specified severity

    Also known as:

    • Chronic Venous Insufficiency
    • Vascular Disease
    • CVI
    • Venous Reflux Disease
    • Leg Vein Incompetence
    • Peripheral Venous Insufficiency

    ICD-10 Codes:

    • I872: Venous insufficiency (chronic) (peripheral)

    Also known as:

    • Asymptomatic HIV Infection
    • HIV
    • HIV positive without symptoms
    • Latent HIV infection
    • HIV carrier

    ICD-10 Codes:

    • Z21: Asymptomatic human immunodeficiency virus [HIV] infection status

    Also known as:

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

    ICD-10 Codes:

    • R7881: Bacteremia

    Also known as:

    • Pressure Sores
    • Bedsores
    • Decubitus Ulcers
    • Pressure Ulcers

    ICD-10 Codes:

    • L89214: Pressure ulcer of right hip, stage 4

    Also known as:

    • Lymphedema
    • Lymphatic Swelling
    • Fluid Retention in Limbs
    • Chronic Swelling

    ICD-10 Codes:

    • I890: Lymphedema, not elsewhere classified

    Also known as:

    • Radiation-Induced Bladder Inflammation with Blood in Urine
    • Bladder Disease
    • Radiation Therapy
    • Urine and Urination
    • Urinary and Bladder Problems
    • Radiation Cystitis with Blood
    • Bloody Urine from Radiation Therapy
    • Post-Radiation Bladder Bleeding

    ICD-10 Codes:

    • N3041: Irradiation cystitis with hematuria

    Also known as:

    • Diabetes Complicationss
    • Diabetes Type 2
    • Type 2 diabetes
    • Diabetes Mellitus Complications
    • Diabetes Related Health Problems
    • Advanced Diabetes

    ICD-10 Codes:

    • E1169: Type 2 diabetes mellitus with other specified complication

    Also known as:

    • Chronic Venous Hypertension with Ulcers
    • Vascular Disease
    • Venous Hypertension Ulcers
    • High Venous Pressure with Sores

    ICD-10 Codes:

    • I87311: Chronic venous hypertension (idiopathic) with ulcer of right lower extremity

    Also known as:

    • Subacute Bone Infection in Left Ankle and Foot
    • Bone Infection
    • Osteomyelitis
    • Infected bone
    • Bone inflammation

    ICD-10 Codes:

    • M86272: Subacute osteomyelitis, left ankle and foot

    Also known as:

    • Urinary Tract Infection
    • UTI
    • Bladder infection
    • Kidney infection
    • Urine infection

    ICD-10 Codes:

    • N390: Urinary tract infection, site not specified

    Which procedures does Dr. Cloonan perform as a Infectious Disease Specialist?

    Does Dr. Cloonan accept my insurance?

    Dr. Cloonan accepts most major insurance plans. Important: Please call our office at (914) 723-8100 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Cloonan accept in Harrison, NY?

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

    Top Insurances

    • Aetna

    • Blue Cross Blue Shield

    • Blue Cross Blue Shield of Illinois

    • Blue Cross Blue Shield of Michigan

    • CVS Health (formerly Aetna)

    • Elderplan

    • Elevance Health Inc. (formerly Anthem)

    • Express Scripts

    • Medicare

    • Service Employees International Union (SEIU)

    View All Insurances

    Where is Dr. Cloonan's office located?

    Dr. Sean Cloonan's Primary Practice

    600 Mamaroneck Ave

    Harrison, NY 10528

    (914) 723-8100

    Get Directions

    Dr. Sean Cloonan's Practice 2

    259 Heathcote Rd

    Scarsdale, NY 10583

    Get Directions

    Recognitions

    Castle Connolly Doctor’s Choice Awards

    nomination-award-icon

    Doctor’s Choice - 2025

    Among the most nominated for the Castle Connolly Top Doctor recognition in 2025

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

    Dr. Cloonan's National Provider Identifier (NPI) number is 1912171430.

    What common questions do patients ask about Dr. Cloonan?

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

    What is Dr. Sean Cloonan's specialty?

    Dr. Cloonan is a Infectious Disease Specialist near Harrison, NY.

    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.

    Contact Dr. Cloonan to book an appointment today.

    Is this Dr. Sean Cloonan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Cloonan is affiliated with White Plains Hospital which is a Castle Connolly Top Hospital. 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 Infectious Disease Specialist?

    Explore Infectious Disease Specialist 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 Sean Cloonan accepting new patients in Harrison, NY?

    Yes, Dr. Sean Cloonan is accepting new patients at this time.

    Does Dr. Sean Cloonan offer online booking?

    Please contact Dr. Cloonan's office at (914) 723-8100 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Sean Cloonan?

    Please contact Dr. Cloonan's office at (914) 723-8100 for information regarding telehealth appointment availability or for scheduling assistance.

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