The 20 Best Giant Cell Arteritis (GCA) Doctors Near Me in Orange, CA

Find the Top Giant Cell Arteritis (GCA) Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 43 doctor with experience in Giant Cell Arteritis (GCA) near Orange, CA. Of these, 36 are Experienced, 4 are Advanced and 1 are Distinguished.

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43 providers found
    Advanced in Giant Cell Arteritis (GCA)
    Rheumatology
    Advanced in Giant Cell Arteritis (GCA)
    Rheumatology
    2501 East Chapman Avenue, Suite 301, 
    Orange, CA 
     (3.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Mehrnaz Hojjati is a Rheumatologist practicing medicine in Orange, California. Dr. Hojjati is rated as an Advanced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). She is also highly rated in 24 other conditions, according to our data. Her clinical expertise encompasses Vasculitis, Rheumatoid Arthritis (RA), Temporal Arteritis, and Giant Cell Arteritis (GCA). Dr. Hojjati is currently accepting new patients.

    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    2501 East Chapman Avenue, Suite 301, 
    Orange, CA 
     (3.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Andrew Phan is a Rheumatologist practicing medicine in Orange, California. Dr. Phan is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Scleroderma, Postmenopausal Osteoporosis, Osteoporosis, and Systemic Sclerosis (SSc). Dr. Phan is currently accepting new patients.

    Advanced in Giant Cell Arteritis (GCA)
    Rheumatology
    Advanced in Giant Cell Arteritis (GCA)
    Rheumatology

    J Lee MD Med Corp Inc

    1010 W La Veta Ave, 
    Orange, CA 
     (0.7 miles away)
    Experience:
    29+ years
    Languages Spoken:
    English
    Offers Telehealth

    Joo-hyung Lee is a Rheumatologist practicing medicine in Orange, California. He has been practicing medicine for over 29 years. Dr. Lee is rated as an Advanced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Rheumatoid Arthritis (RA), Postmenopausal Osteoporosis, Osteoporosis, and Fibromyalgia. Dr. Lee is board certified in American Board Of Rheumatology.

    Learn about our expert tiers
    Advanced in Giant Cell Arteritis (GCA)
    Rheumatology
    Advanced in Giant Cell Arteritis (GCA)
    Rheumatology

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (2.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Dan Mandel is a Rheumatologist practicing medicine in Orange, California. Dr. Mandel is rated as an Advanced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). He is also highly rated in 33 other conditions, according to our data. His clinical expertise encompasses Acute Febrile Neutrophilic Dermatosis, Scleritis, Calcium Pyrophosphate Arthritis, and Polyarteritis Nodosa.

    Rheumatology
    Rheumatology

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (2.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Naya Mckinnon is a Rheumatologist practicing medicine in Orange, California. Dr. Mckinnon is rated as undefined provider by MediFind in the treatment of Giant Cell Arteritis (GCA). She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Sjogren Syndrome, Fibromyalgia, and Psoriasis. Dr. Mckinnon is board certified in Rheumatology.

    Experienced in Giant Cell Arteritis (GCA)
    Internal Medicine
    Experienced in Giant Cell Arteritis (GCA)
    Internal Medicine

    Optum - Chapman

    845 E Chapman Ave, 
    Orange, CA 
     (0.6 miles away)
    Experience:
    44+ years
    Languages Spoken:
    English

    Thomas Hryniewicki is a primary care provider, practicing in Internal Medicine in Orange, California. He has been practicing medicine for over 44 years. Dr. Hryniewicki is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Purpura, Autoerythrocyte Sensitivity, Gardner-Diamond Syndrome, and Cirrhosis. Dr. Hryniewicki is board certified in American Board Of Internal Medicine.

    Experienced in Giant Cell Arteritis (GCA)
    Internal Medicine
    Experienced in Giant Cell Arteritis (GCA)
    Internal Medicine

    UCI Health Cardiovascular Center

    101 The City Dr S Bldg 30, 
    Orange, CA 
     (1.2 miles away)
    Languages Spoken:
    English

    Ian Chang is an Internal Medicine provider practicing medicine in Orange, California. Dr. Chang is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Acute Febrile Neutrophilic Dermatosis, Rheumatoid Arthritis (RA), Takayasu Arteritis, and Mixed Connective Tissue Disease.

    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology

    UCI Health Cardiovascular Center

    101 The City Dr S Bldg 30, 
    Orange, CA 
     (1.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Priyanka Iyer is a Rheumatologist practicing medicine in Orange, California. Dr. Iyer is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Eosinophilic Granulomatosis with Polyangiitis (EGPA, Churg-Strauss Syndrome), Lupus Nephritis, and Sjogren Syndrome.

    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (2.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Michael Cheng is a Rheumatologist practicing medicine in Orange, California. Dr. Cheng is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Rheumatoid Arthritis (RA), Psoriatic Arthritis, Psoriasis, Calcium Pyrophosphate Arthritis, and Gastrostomy.

    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (2.0 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English
    Offers Telehealth

    Nicole Ridolfi is a Rheumatologist practicing medicine in Orange, California. She has been practicing medicine for over 10 years. Dr. Ridolfi is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). Her clinical expertise encompasses Giant Cell Arteritis (GCA), Juvenile Temporal Arteritis, Temporal Arteritis, and Raynaud Phenomenon.

    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (2.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sheetal Desai is a Rheumatologist practicing medicine in Orange, California. Dr. Desai is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). She is also highly rated in 18 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Lupus Nephritis, Sarcoidosis, and Neurosarcoidosis.

    Experienced in Giant Cell Arteritis (GCA)
    Experienced in Giant Cell Arteritis (GCA)

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (2.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Farshid Bozorgnia is a Rheumatologist practicing medicine in Orange, California. Dr. Bozorgnia is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Hypersensitivity Vasculitis, Raynaud Phenomenon, Fibromyalgia, and Vasculitis.

    Experienced in Giant Cell Arteritis (GCA)
    Internal Medicine
    Experienced in Giant Cell Arteritis (GCA)
    Internal Medicine

    Uci University Physicians And Su

    101 The City Dr S, 
    Orange, CA 
     (2.0 miles away)
    Experience:
    36+ years
    Languages Spoken:
    English
    Offers Telehealth

    Martha Sosa is a primary care provider, practicing in Internal Medicine in Orange, California. She has been practicing medicine for over 36 years. Dr. Sosa is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Visceromegaly, Osteoarthritis, Multiple Myeloma, and Hepatitis. Dr. Sosa is board certified in American Board Of Internal Medicine.

    Experienced in Giant Cell Arteritis (GCA)
    Geriatrics | Internal Medicine
    Experienced in Giant Cell Arteritis (GCA)
    Geriatrics | Internal Medicine

    Regents Of The University Of

    101 The City Dr S, 
    Orange, CA 
     (2.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Steven Tam is a primary care provider, practicing in Geriatrics and Internal Medicine in Orange, California. Dr. Tam is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Memory Loss, Chronic Cough, Dementia, and Cerebellar Degeneration.

    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology

    Consortio Healthcare Inc

    12791 Newport Ave Ste 201, 
    Tustin, CA 
     (4.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Robin Dore is a Rheumatologist practicing medicine in Tustin, California. Dr. Dore is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). She is also highly rated in 24 other conditions, according to our data. Her clinical expertise encompasses Postmenopausal Osteoporosis, Rheumatoid Arthritis (RA), Osteoporosis, and Juvenile Primary Osteoporosis.

    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology

    Precision Rheumatology Inc.

    2050 S Euclid St, 
    Anaheim, CA 
     (5.0 miles away)
    Languages Spoken:
    English

    Maryam Gul is a Rheumatologist practicing medicine in Anaheim, California. Dr. Gul is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). Her clinical expertise encompasses Rheumatoid Arthritis (RA), Microscopic Polyangiitis, Vasculitis, and Gout.

    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    2141 North Harbor Boulevard, Suite 25000, 
    Fullerton, CA 
     (8.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jay Kim is a Rheumatologist practicing medicine in Fullerton, California. Dr. Kim is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Rheumatoid Arthritis (RA), Osteoporosis, Postmenopausal Osteoporosis, and Rhizomelic Pseudopolyarthritis. Dr. Kim is currently accepting new patients.

    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    Experienced in Giant Cell Arteritis (GCA)
    Rheumatology
    2141 North Harbor Boulevard, Suite 25000, 
    Fullerton, CA 
     (8.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Michelle Ngo is a Rheumatologist practicing medicine in Fullerton, California. Dr. Ngo is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). She is also highly rated in 14 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Osteoporosis, Postmenopausal Osteoporosis, and Eosinophilic Granulomatosis with Polyangiitis (EGPA, Churg-Strauss Syndrome). Dr. Ngo is currently accepting new patients.

    Experienced in Giant Cell Arteritis (GCA)
    Experienced in Giant Cell Arteritis (GCA)
    2141 North Harbor Boulevard, Suite 25000, 
    Fullerton, CA 
     (8.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Shivani Patel is a Rheumatologist practicing medicine in Fullerton, California. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of Giant Cell Arteritis (GCA). Her clinical expertise encompasses Rheumatoid Arthritis (RA), Rheumatoid Vasculitis, Rheumatoid Pneumoconiosis, and Rheumatoid Lung Disease. Dr. Patel is currently accepting new patients.

    Internal Medicine
    Internal Medicine

    Afshar Medical Group

    62 Corporate Park Ste 200, 
    Irvine, CA 
     (6.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Farhad Nassiri is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Nassiri is rated as undefined provider by MediFind in the treatment of Giant Cell Arteritis (GCA). His clinical expertise encompasses High Cholesterol, Hypertension, Asthma, and Type 2 Diabetes (T2D). Dr. Nassiri is board certified in American Board Of Internal Medicine.

    Showing 1-20 of 43

    Last Updated: 04/28/2026

    What is the definition of Giant Cell Arteritis (GCA)?

    Giant cell arteritis (GCA) is a form of vasculitis, a group of disorders that cause inflammation of blood vessels. GCA most commonly affects the arteries of the head (especially the temporal arteries, located on each side of the head), but arteries in other areas of the body can also become inflamed. The inflammation causes the arteries to narrow, resulting in poor blood flow. Symptoms when arteries in the head are involved may include a throbbing headache on one side or the back of the head, tenderness of the scalp, flu-like symptoms, and/or problems with eyesight. Symptoms when other arteries are involved depend on the location of those arteries. The cause of GCA is still being studied, but it is thought to involve the immune system mistakenly attacking the artery walls. Several genetic and environmental factors may increase a person's risk to develop GCA. GCA may develop with or after another inflammatory disorder known as polymyalgia rheumatica.

    When should I see a Giant Cell Arteritis (GCA) doctor near Orange, CA?

    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 Giant Cell Arteritis (GCA) doctor near Orange, CA?

    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 Giant Cell Arteritis (GCA) doctors near Orange, CA?

    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 Giant Cell Arteritis (GCA) doctors near Orange, CA?

    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 Giant Cell Arteritis (GCA) doctor near Orange, CA?

    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 Giant Cell Arteritis (GCA) doctor search results page. 

    Why is it important to get a second opinion from a different Giant Cell Arteritis (GCA) 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 Giant Cell Arteritis (GCA) doctor near Orange, CA?

    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 Giant Cell Arteritis (GCA) 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 Giant Cell Arteritis (GCA) 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 Giant Cell Arteritis (GCA) doctors near Orange, CA?

    Look for the filter feature on the left side of the Giant Cell Arteritis (GCA) 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 Giant Cell Arteritis (GCA) doctor that offers video calls?

    Look for the filter feature on the left-side of the Giant Cell Arteritis (GCA) 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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