23 Years of Experience
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. 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 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 and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Mahajan empowers patients to confidently navigate their health journey, specializing in Geriatric Medicine, and 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 as an 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 an Internist like Dr. Mahajan typically treat?
As an 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. Learn more about our claims-based healthcare methodology here.
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Dementia
- Cognitive decline
- Memory loss
- Brain disorder
ICD-10 Codes:
- F0390: Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
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
What procedures does an Internist like Dr. Mahajan typically perform?
As an 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. Learn more about our claims-based healthcare methodology here.
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
Centene Corporation
Cigna Group
Cook County Health & Hospitals System
CVS Health (formerly Aetna)
Humana
Medicare
Molina Healthcare
State of Illinois
UnitedHealth Group
View All Insurances
Where is Dr. Mahajan's office located?
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.
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. 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
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 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.
<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>