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Dr. Dheeraj Mahajan, MD

Dr. Dheeraj Mahajan, MD

Oak Park, IL

23 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Mahajan, Internist in Oak Park, IL?

    Dr. Dheeraj Mahajan, MD is an Internist, who primarily practices in Oak Park, IL with 2 additional practice locations. He has been practicing for over 23 years and is board certified by the American Board of Internal Medicine. Dr. Mahajan completed his residency at Advocate Il Masonic Med Ctr, Internal Medicine. Dr. Mahajan is fluent in English and Hindi, and is currently seeing new patients. Dr. Mahajan’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mahajan’s office.

    What are Areas of Expertise for Dr. Mahajan?

    Dr. Dheeraj Mahajan, MD is a highly-rated, board-certified Internist 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. Mahajan empowers patients to confidently navigate their health journey, specializing in Geriatric Medicine, or comprehensive wellness support. Serving the Oak Park/IL community, Dr. Mahajan is dedicated to enhancing lives through expert, patient-centered care.

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

    • Residency: Advocate Il Masonic Med Ctr, Internal Medicine

    • Medical School: University of Calcutta / Medical College

    Is Dr. Mahajan board certified in Internist?

    Yes, Dr. Dheeraj Mahajan, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Mahajan speak?

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

    • English

    • Hindi

    What conditions does Dr. Mahajan treat?

    As a Internist, Dr. Mahajan 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. Mahajan. 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:

    • Immunization Visit
    • Vaccines
    • Vaccination appointment
    • Shot visit
    • Immunization encounter

    ICD-10 Codes:

    • Z23: Encounter for immunization

    Also known as:

    • Dementia
    • Dementia with Behavioral Changes
    • Cognitive decline
    • Memory loss
    • Brain disorder
    • Dementia with behavioral problems
    • Cognitive decline with behavior issues
    • Memory loss with personality changes

    ICD-10 Codes:

    • F0390: Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
    • F03918: Unspecified dementia, unspecified severity, with other behavioral disturbance

    Also known as:

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

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • COPD
    • Chronic Obstructive Pulmonary Disease
    • Chronic Lung Disease
    • Emphysema and Chronic Bronchitis

    ICD-10 Codes:

    • J449: Chronic obstructive pulmonary disease, unspecified

    Also known as:

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

    ICD-10 Codes:

    • G9341: Metabolic encephalopathy

    Also known as:

    • COVID-19
    • COVID-19 (Coronavirus Disease 2019)
    • Coronavirus Disease 2019
    • SARS-CoV-2 Infection
    • Novel Coronavirus

    ICD-10 Codes:

    • U071: COVID-19

    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:

    • 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:

    • I69354: Hemiplegia and hemiparesis following cerebral infarction affecting left non-dominant side

    Also known as:

    • Difficulty Walking
    • Walking Problems
    • Trouble Walking
    • Impaired Gait

    ICD-10 Codes:

    • R262: Difficulty in walking, not elsewhere classified

    Also known as:

    • Parkinson's Disease without Involuntary Movements
    • Parkinson's Disease
    • Early Parkinson's', 'Non-dyskinetic Parkinsonism', 'Stable Parkinson's Disease

    ICD-10 Codes:

    • G20A1: Parkinson's disease without dyskinesia, without mention of fluctuations

    What procedures does Dr. Mahajan perform?

    As a Internist, Dr. Mahajan 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. Mahajan. 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

    Also known as:

    • Swallowing Therapy
    • Dysphagia Treatment
    • Feeding Therapy
    • Oral Function Therapy

    CPT Codes:

    • 92526: Treatment of swallowing dysfunction and/or oral function for feeding

    Does Dr. Mahajan accept my insurance?

    Dr. Mahajan 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. Mahajan accept in Oak Park, IL?

    Dr. Mahajan in Oak Park, IL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Crown Cork and Seal Company

    • CVS Health (formerly Aetna)

    • Humana

    • Medicare

    • Molina

    • SGS North America Inc

    • State of Illinois

    • State of Tennessee

    • Tria Health

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    Where is Dr. Mahajan's office located?

    Dr. Dheeraj Mahajan's Primary Practice

    101 Madison St Ste 300

    Oak Park, IL 60302

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    Dr. Dheeraj Mahajan's Practice 2

    645 S Central Ave Ste 6

    Chicago, IL 60644

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    Dr. Dheeraj Mahajan's Practice 3

    675 W North Ave Ste 606

    Melrose Park, IL 60160

    (708) 681-7877

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

    Dr. Mahajan's National Provider Identifier (NPI) number is 1831133693.

    What common questions do patients ask about Dr. Mahajan?

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

    What is Dr. Dheeraj Mahajan's specialty?

    Dr. Mahajan is a Internist near Oak Park, IL.

    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. Mahajan to book an appointment today.

    Is this Dr. Dheeraj Mahajan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Mahajan is affiliated with Northwestern Memorial 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 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 Dheeraj Mahajan accepting new patients in Oak Park, IL?

    Yes, Dr. Dheeraj Mahajan is accepting new patients at this time.

    Does Dr. Dheeraj Mahajan offer online booking?

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

    How can I make an appointment with Dheeraj Mahajan?

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

    Which board certifications does Dr. Dheeraj Mahajan have?

    Dr. Dheeraj Mahajan is certified by the American Board of Internal Medicine.

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