The 20 Best MASS Phenotype Doctors Near Me in Illinois, US

Find the Top MASS Phenotype Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 161 doctor with experience in MASS Phenotype near Illinois, US. Of these, 134 are Experienced, 26 are Advanced and 1 are Distinguished.

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161 providers found
    Experienced in MASS Phenotype
    Rheumatology
    Experienced in MASS Phenotype
    Rheumatology

    Advocate Medical Group Rheumatology

    9550 W 167th St, 
    Orland Park, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Sunil John is a Rheumatologist practicing medicine in Orland Park, Illinois. Dr. John is rated as an Experienced provider by MediFind in the treatment of MASS Phenotype. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Rheumatoid Arthritis (RA), Mixed Connective Tissue Disease, MASS Phenotype, and Fibromyalgia. Dr. John is board certified in American Board Of Internal Medicine, Rheumatology.

    Advanced in MASS Phenotype
    Internal Medicine | Rheumatology
    Advanced in MASS Phenotype
    Internal Medicine | Rheumatology

    OSF Medical Group - Rheumatology

    1800 North Knoxville Avenue, 
    Peoria, IL 
    Languages Spoken:
    English, Hindi, Urdu
    Offers Telehealth

    Imran Umer is an Internal Medicine specialist and a Rheumatologist practicing medicine in Peoria, Illinois. Dr. Umer is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Polymyalgia Rheumatica, Rhizomelic Pseudopolyarthritis, Rheumatoid Arthritis (RA), Systemic Lupus Erythematosus (SLE), and Tissue Biopsy. Dr. Umer is board certified in American Board Of Internal Medicine.

    Experienced in MASS Phenotype
    Internal Medicine
    Experienced in MASS Phenotype
    Internal Medicine

    Advocate Medical Group Internal Medicine

    2535 S Martin Luther King Dr, 
    Chicago, IL 
    Languages Spoken:
    English

    Linus Ema is a primary care provider, practicing in Internal Medicine in Chicago, Illinois. Dr. Ema is rated as an Experienced provider by MediFind in the treatment of MASS Phenotype. His clinical expertise encompasses Type 2 Diabetes (T2D), Multiple Carboxylase Deficiency, Folate Deficiency, and Vitamin B12 Deficiency Anemia. Dr. Ema is board certified in American Board Of Internal Medicine.

    Learn about our expert tiers
    Experienced in MASS Phenotype
    Family Medicine
    Experienced in MASS Phenotype
    Family Medicine

    Advocate Medical Group Primary Care

    9550 W 167th St, Ste 100, 
    Orland Park, IL 
    Languages Spoken:
    English, Gujarati , Hindi

    Sachin Dixit is a primary care provider, practicing in Family Medicine in Orland Park, Illinois. Dr. Dixit is rated as an Experienced provider by MediFind in the treatment of MASS Phenotype. His clinical expertise encompasses Pulmonary Embolism, Type 2 Diabetes (T2D), Mixed Connective Tissue Disease, and MASS Phenotype. Dr. Dixit is board certified in American Board Of Family Medicine.

    Advanced in MASS Phenotype
    Rheumatology | Internal Medicine
    Advanced in MASS Phenotype
    Rheumatology | Internal Medicine

    Endeavor Health Medical Group

    1000 Central St., Suite 800, 
    Evanston, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Bob H. Sun, MD, a rheumatologist at Endeavor Health, provides care for autoimmune and inflammatory conditions affecting the joints and connective tissues. His clinical expertise includes rheumatoid arthritis, osteoarthritis, ankylosing spondylitis and crystalline arthropathies. Dr. Sun offers comprehensive evaluations and evidence-based treatment to help reduce pain and support joint function. Dr. Sun is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. He is also highly rated in 36 other conditions, according to our data. His clinical expertise encompasses Chondrocalcinosis 2, Calcium Pyrophosphate Arthritis, Polymyalgia Rheumatica, and Rhizomelic Pseudopolyarthritis. Dr. Sun is board certified in American Board Of Internal Medicine.

    Advanced in MASS Phenotype
    Rheumatology
    Advanced in MASS Phenotype
    Rheumatology

    Endeavor Health Medical Group

    2150 Pfingsten Rd., Suite 3000, 
    Glenview, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Laura Shermer Zaacks, MD, a rheumatologist at Endeavor Health, provides care for a range of autoimmune and musculoskeletal conditions, including rheumatoid arthritis, lupus, psoriatic arthritis and vasculitis. She evaluates and treats chronic inflammatory diseases and systemic connective tissue disorders with personalized, evidence-based approaches. Dr. Zaacks helps patients manage symptoms and improve joint health and mobility. Dr. Zaacks is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 41 other conditions, according to our data. Her clinical expertise encompasses Juvenile Temporal Arteritis, Rhizomelic Pseudopolyarthritis, Polymyalgia Rheumatica, and Giant Cell Arteritis (GCA). Dr. Zaacks is board certified in American Board Of Internal Medicine.

    Advanced in MASS Phenotype
    Rheumatology
    Advanced in MASS Phenotype
    Rheumatology

    Greater Chicago Specialty Physicians, LLC

    11540 183rd Pl, 
    Orland Park, IL 
    Languages Spoken:
    English

    Cory Conniff is a Rheumatologist practicing medicine in Orland Park, Illinois. Dr. Conniff is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses IgG4-Related Disease, MAGIC Syndrome, Light Chain Deposition Disease (LCDD), and Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcus Infections. Dr. Conniff is board certified in American Board Of Internal Medicine, Rheumatology.

    Advanced in MASS Phenotype
    Advanced in MASS Phenotype
    302 Randall Rd Ste 105, 
    Geneva, IL 
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    David Giangreco is a Rheumatologist practicing medicine in Geneva, Illinois. He has been practicing medicine for over 17 years. Dr. Giangreco is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Rheumatoid Arthritis (RA), Polymyalgia Rheumatica, Rhizomelic Pseudopolyarthritis, and Systemic Sclerosis (SSc). Dr. Giangreco is board certified in American Board Of Internal Medicine - Internal Medicine (Certified).

    Advanced in MASS Phenotype
    Rheumatology
    Advanced in MASS Phenotype
    Rheumatology

    Illinois Bone And Joint Institute, LLC

    9000 Waukegan Rd., Suite 200, 
    Morton Grove, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Ami Kothari is a Rheumatologist practicing medicine in Morton Grove, Illinois. Dr. Kothari is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Osteoporosis, Postmenopausal Osteoporosis, MASS Phenotype, and Mixed Connective Tissue Disease. Dr. Kothari is board certified in American Board Of Internal Medicine.

    Advanced in MASS Phenotype
    Rheumatology | Internal Medicine
    Advanced in MASS Phenotype
    Rheumatology | Internal Medicine

    Endeavor Health Medical Group

    9650 Gross Point Rd., Suite 3900, 
    Skokie, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Justin B. Gan, MD, a rheumatologist at Endeavor Health, specializes in the treatment of autoimmune and inflammatory conditions. He manages complex diseases such as lupus, dermatomyositis, gout and ankylosing spondylitis. Dr. Gan performs procedures like arthrocentesis and steroid injections to help relieve joint inflammation and improve mobility. Dr. Gan is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. He is also highly rated in 38 other conditions, according to our data. His clinical expertise encompasses Calcium Pyrophosphate Arthritis, Polymyalgia Rheumatica, Rhizomelic Pseudopolyarthritis, and Relapsing Polychondritis. Dr. Gan is board certified in American Board Of Internal Medicine.

    Advanced in MASS Phenotype
    Advanced in MASS Phenotype

    Chicago Arthritis, LLC

    618 W Fulton St, 
    Chicago, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Siddharth Tambar is a Rheumatologist practicing medicine in Chicago, Illinois. Dr. Tambar is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Rheumatoid Arthritis (RA), Rheumatoid Vasculitis, Psoriatic Arthritis, and MASS Phenotype. Dr. Tambar is board certified in American Board Of Internal Medicine, Rheumatology.

    Distinguished in MASS Phenotype
    Rheumatology
    Distinguished in MASS Phenotype
    Rheumatology

    Northshore Omega

    2150 Pfingsten Rd Ste 3000, 
    Glenview, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Barbara Drevlow is a Rheumatologist practicing medicine in Glenview, Illinois. Dr. Drevlow is rated as a Distinguished provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 43 other conditions, according to our data. Her clinical expertise encompasses Relapsing Polychondritis, Lupus Nephritis, Rheumatoid Arthritis (RA), and Psoriasis.

    Advanced in MASS Phenotype
    Advanced in MASS Phenotype
    800 N Westmoreland Rd Ste 201, 
    Lake Forest, IL 
    Experience:
    43+ years
    Languages Spoken:
    English
    Offers Telehealth

    Jennifer Capezio is a Rheumatologist practicing medicine in Lake Forest, Illinois. She has been practicing medicine for over 43 years. Dr. Capezio is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 26 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Fibromyalgia, Polymyositis, and Osteoporosis. Dr. Capezio is board certified in American Board Of Internal Medicine - Internal Medicine (Certified).

    Advanced in MASS Phenotype
    Rheumatology
    Advanced in MASS Phenotype
    Rheumatology
    259 E Erie St Ste 2330, Lavin Family Pavilion, 
    Chicago, IL 
    Experience:
    23+ years
    Languages Spoken:
    English
    Offers Telehealth

    Christine Hsieh is a Rheumatologist practicing medicine in Chicago, Illinois. She has been practicing medicine for over 23 years. Dr. Hsieh is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 13 other conditions, according to our data. Her clinical expertise encompasses Systemic Lupus Erythematosus (SLE), Rheumatoid Arthritis (RA), Discoid Lupus Erythematosus (DLE), and Cutaneous Lupus Erythematosus (CLE). Dr. Hsieh is board certified in American Board Of Internal Medicine - Rheumatology (Certified).

    Advanced in MASS Phenotype
    Advanced in MASS Phenotype
    27650 Ferry Rd Ste 210, 
    Waterman, IL 
    Experience:
    21+ years
    Languages Spoken:
    English
    Offers Telehealth

    Angelica Gierut is a Rheumatologist practicing medicine in Waterman, Illinois. She has been practicing medicine for over 21 years. Dr. Gierut is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 11 other conditions, according to our data. Her clinical expertise encompasses Polymyalgia Rheumatica, Rhizomelic Pseudopolyarthritis, Rheumatoid Arthritis (RA), and Necrotizing Vasculitis. Dr. Gierut is board certified in American Board Of Internal Medicine - Rheumatology (Certified).

    Advanced in MASS Phenotype
    Rheumatology
    Advanced in MASS Phenotype
    Rheumatology
    15300 West Ave Ste 100, 
    Orland Hills, Illinois, IL 
    Experience:
    27+ years
    Languages Spoken:
    English
    Offers Telehealth

    Fariha Kausar is a Rheumatologist practicing medicine in Orland Hills, Illinois, Illinois. She has been practicing medicine for over 27 years. Dr. Kausar is rated as an Advanced provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 22 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Rhizomelic Pseudopolyarthritis, Polymyalgia Rheumatica, and Osteoporosis. Dr. Kausar is board certified in American Board Of Internal Medicine - Rheumatology (Certified).

    Experienced in MASS Phenotype
    Rheumatology | Internal Medicine
    Experienced in MASS Phenotype
    Rheumatology | Internal Medicine

    Endeavor Health Medical Group

    1220 Hobson Rd., Suite 104, 
    Naperville, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Nisha D'Silva, DO, a rheumatologist at Endeavor Health, treats autoimmune and inflammatory conditions such as rheumatoid arthritis, psoriatic arthritis and gout. She emphasizes a whole-person approach by integrating lifestyle factors like nutrition and movement with evidence-based treatments. Dr. D'Silva believes in asking the right questions, building a complete picture of the patient and helping them feel better in a way that fits their life. Dr. Dsilva is rated as an Experienced provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Rhizomelic Pseudopolyarthritis, Polymyalgia Rheumatica, Mixed Connective Tissue Disease, and MASS Phenotype. Dr. Dsilva is board certified in American Board Of Internal Medicine.

    Experienced in MASS Phenotype
    Experienced in MASS Phenotype

    Northwest Rheumatology Specialists, SC

    Elk Grove Village, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Dina Dadabhoy is a Rheumatologist practicing medicine in Elk Grove Village, Illinois. Dr. Dadabhoy is rated as an Experienced provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Sjogren Syndrome, Psoriatic Arthritis, and Necrotizing Vasculitis. Dr. Dadabhoy is board certified in American Board Of Internal Medicine.

    Experienced in MASS Phenotype
    Rheumatology
    Experienced in MASS Phenotype
    Rheumatology

    Endeavor Health Medical Group

    2150 Pfingsten Rd., Suite 3000, 
    Glenview, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Anjali Rishi Casey, MD, a rheumatologist at Endeavor Health, specializes in diagnosing and managing autoimmune and inflammatory conditions that affect the joints, muscles and connective tissues. She treats conditions such as rheumatoid arthritis, gout, psoriatic arthritis and systemic connective tissue diseases. Dr. Casey offers a range of rheumatologic procedures including joint injections and aspirations to help patients manage pain and preserve mobility. Dr. Casey is rated as an Experienced provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 29 other conditions, according to our data. Her clinical expertise encompasses Osteoporosis, Postmenopausal Osteoporosis, Calcium Pyrophosphate Arthritis, and Gout. Dr. Casey is board certified in American Board Of Internal Medicine.

    Experienced in MASS Phenotype
    Experienced in MASS Phenotype

    Willow Rheumatology And Wellness, PLLC

    535 Plainfield Rd, 
    Willowbrook, IL 
    Languages Spoken:
    English
    Offers Telehealth

    Angela Crowley is a Rheumatologist practicing medicine in Willowbrook, Illinois. Dr. Crowley is rated as an Experienced provider by MediFind in the treatment of MASS Phenotype. She is also highly rated in 14 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Vasculitis, Axial Spondyloarthritis (AxSpA), Rheumatoid Lung Disease, and Rheumatoid Pneumoconiosis. Dr. Crowley is board certified in American Board Of Internal Medicine, Rheumatology.

    Showing 1-20 of 161

    Last Updated: 04/28/2026

    When should I see a MASS Phenotype doctor in Illinois, US?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a MASS Phenotype doctor in Illinois, US?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How does MediFind rank MASS Phenotype doctors in Illinois, US?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by MASS Phenotype doctors in Illinois, US?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a MASS Phenotype doctor in Illinois, US?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the MASS Phenotype doctor search results page. 

    Why is it important to get a second opinion from a different MASS Phenotype doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a MASS Phenotype doctor in Illinois, US?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my MASS Phenotype doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my MASS Phenotype doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female MASS Phenotype doctors in Illinois, US?

    Look for the filter feature on the left side of the MASS Phenotype doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a MASS Phenotype doctor that offers video calls?

    Look for the filter feature on the left-side of the MASS Phenotype doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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