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Dr. Claes Nilsson, MD

Canton, MA

46 Years of Experience

Accepting patients

    Who is Dr. Nilsson, Internist in Canton, MA?

    Dr. Claes Nilsson, MD is an Internist, who primarily practices in Canton, MA with 2 additional practice locations. He has been practicing for over 46 years. Dr. Nilsson graduated from Yale University School of Medicine. Dr. Nilsson is fluent in English and Portuguese, and is currently seeing new patients. Dr. Nilsson’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nilsson’s office at (413) 543-6820.

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

    • Medical School: Yale University School of Medicine

    What languages does Dr. Nilsson speak?

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

    • English

    • Portuguese

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

    As an Internist, Dr. Nilsson 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. Nilsson. 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 here.

    Also known as:

    • Age-Related Weakness
    • Frailty in old age
    • Physical decline with age
    • Weakness due to aging

    ICD-10 Codes:

    • R54: Age-related physical debility

    Also known as:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    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:

    • Dementia
    • Age-Related Brain Degeneration
    • Cognitive decline
    • Memory loss
    • Brain disorder
    • Senile Dementia
    • Brain Degeneration in Elderly

    ICD-10 Codes:

    • F0390: Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
    • G311: Senile degeneration of brain, not elsewhere classified

    Also known as:

    • Alzheimer's Disease
    • Alzheimer's Disease Fact Sheet
    • AD
    • Alzheimer's Dementia
    • Memory Loss Disease

    ICD-10 Codes:

    • G309: Alzheimer's disease, unspecified

    Also known as:

    • Generalized Muscle Weakness
    • Muscle Disorder
    • Overall Body Weakness
    • Widespread Muscle Weakness
    • Systemic Muscle Weakness

    ICD-10 Codes:

    • M6281: Muscle weakness (generalized)

    Also known as:

    • Chronic pain syndrome
    • Chronic Pain
    • Persistent pain syndrome
    • Long-term pain condition
    • Chronic widespread pain

    ICD-10 Codes:

    • G894: Chronic pain syndrome

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

    As an Internist, procedures performed by Dr. Claes Nilsson may include:

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

    Does Dr. Nilsson accept my insurance?

    Dr. Nilsson accepts most major insurance plans. Important: Please call our office at (413) 543-6820 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Nilsson accept in Canton, MA?

    Dr. Nilsson in Canton, MA 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 Massachusetts

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Humana

    • Mass General Brigham

    • Medicare

    • Point32Health

    • State of Massachusetts

    • UnitedHealth Group

    • Unknown

    View All Insurances

    Where is Dr. Nilsson's office located?

    Dr. Claes Nilsson's Primary Practice

    45 Dan Rd

    Canton, MA 02021

    (413) 543-6820

    Get Directions

    Dr. Claes Nilsson's Practice 2

    819 Worcester St

    Springfield, MA 01151

    Get Directions

    Dr. Claes Nilsson's Practice 3

    990 Washington St Ste 203

    Dedham, MA 02026

    Get Directions

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

    Dr. Nilsson's National Provider Identifier (NPI) number is 1912006065.

    What common questions do patients ask about Dr. Nilsson?

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

    What is Dr. Claes Nilsson's specialty?

    Dr. Nilsson is a Internist near Canton, MA.

    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. Claes Nilsson affiliated with a ranked Castle Connolly Top Hospital?

    No, Nilsson is not affiliated with a Castle Connolly Top Hospital. 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 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 Claes Nilsson accepting new patients in Canton, MA?

    Yes, Dr. Claes Nilsson is accepting new patients at this time.

    Does Dr. Claes Nilsson offer online booking?

    Please contact Dr. Nilsson's office at (413) 543-6820 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Claes Nilsson?

    Please contact Dr. Nilsson's office at (413) 543-6820 for information regarding telehealth appointment availability or for scheduling assistance.

    <section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>