IC
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Chang, Rheumatologist in Orange, CA?
Dr. Ian Chang, DO is a Rheumatologist, who primarily practices in Orange, CA with 2 additional practice locations. Dr. Chang completed his residency at Michigan State University Program. Dr. Chang is fluent in English, and is currently seeing new patients. Dr. Chang’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chang’s office at (714) 456-7720.
Where did Dr. Chang go to medical school and complete their residency?
Residency: Michigan State University Program
What languages does Dr. Chang speak?
Dr. Chang and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Chang treat?
As a Rheumatologist, Dr. Chang 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. Chang. 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:
- Rheumatoid Arthritis
- RA
- Chronic inflammatory arthritis
- Autoimmune arthritis
- Inflammatory joint disease
- Chronic Inflammatory Arthritis
- Autoimmune Arthritis
- Rheumatoid Disease
ICD-10 Codes:
- M059: Rheumatoid arthritis with rheumatoid factor, unspecified
- M0580: Other rheumatoid arthritis with rheumatoid factor of unspecified site
- M0600: Rheumatoid arthritis without rheumatoid factor, unspecified site
- M069: Rheumatoid arthritis, unspecified
Also known as:
- Osteoarthritis
- Degenerative Joint Disease
- Wear-and-Tear Arthritis
- Joint Degeneration
ICD-10 Codes:
- M1990: Unspecified osteoarthritis, unspecified site
Also known as:
- Joint Pain
- Joint Disorder
- Pain
- Arthralgia
- Aching joints
- Sore joints
ICD-10 Codes:
- M2550: Pain in unspecified joint
Also known as:
- Other Abnormal Immune System Markers
- Unusual immune findings
- Abnormal immunology results
- Abnormal serum immunology
ICD-10 Codes:
- R768: Other specified abnormal immunological findings in serum
Also known as:
- Lupus
- Systemic lupus erythematosus
- SLE
- Disseminated lupus erythematosus
ICD-10 Codes:
- M329: Systemic lupus erythematosus, unspecified
Also known as:
- Fibromyalgia
- Widespread pain syndrome
- Chronic muscle pain
- Fibromyositis
ICD-10 Codes:
- M797: Fibromyalgia
Also known as:
- Gout
- Gouty Arthritis
- Hyperuricemia
- Uric Acid Arthritis
ICD-10 Codes:
- M1A9XX1: Chronic gout, unspecified, with tophus (tophi)
- M109: Gout, unspecified
Also known as:
- Sjogren's Syndrome with Dry Eyes
- Sjogren's Syndrome
- Sjögren syndrome
- Sjögren's Keratoconjunctivitis
- Dry Eye Disease from Sjogren's', 'Sjogren's Affecting Eyes
ICD-10 Codes:
- M3501: Sjogren syndrome with keratoconjunctivitis
Also known as:
- Age-Related Osteoporosis
- Fractures
- Osteoporosis
- Senile Osteoporosis
- Primary Osteoporosis
- Bone Thinning from Aging
ICD-10 Codes:
- M810: Age-related osteoporosis without current pathological fracture
Also known as:
- Connective Tissue Overlap Syndrome
- Connective Tissue Disorder
- Mixed Connective Tissue Disease
- Overlap Syndrome
- Undifferentiated Connective Tissue Disease
ICD-10 Codes:
- M351: Other overlap syndromes
Also known as:
- Giant cell arteritis
- Giant Cell Arteritis
- Polymyalgia Rheumatica and Giant Cell Arteritis
- Temporal arteritis', 'Horton's disease
- Cranial arteritis
ICD-10 Codes:
- M316: Other giant cell arteritis
Also known as:
- Scleroderma
- Systemic scleroderma
- Systemic Sclerosis
- Hardening of the Skin
- Connective Tissue Disease
ICD-10 Codes:
- M349: Systemic sclerosis, unspecified
Also known as:
- Polymyalgia Rheumatica
- Polymyalgia Rheumatica and Giant Cell Arteritis
- PMR
- Inflammatory Rheumatism
ICD-10 Codes:
- M353: Polymyalgia rheumatica
Also known as:
- Spondylosis
- Spine Injuries and Disorder
- Spinal Osteoarthritis
- Degenerative Disc Disease
- Spinal Degeneration
ICD-10 Codes:
- M479: Spondylosis, unspecified
Also known as:
- Psoriatic Arthritis
- Psoriasis
- Psoriatic joint inflammation
- Arthritis with psoriasis
- Psoriasis-related joint pain
ICD-10 Codes:
- L4050: Arthropathic psoriasis, unspecified
Also known as:
- Ankylosing Spondylitis
- AS', 'Bechterew's Disease
- Inflammatory Spinal Arthritis
ICD-10 Codes:
- M459: Ankylosing spondylitis of unspecified sites in spine
What procedures does Dr. Chang perform?
As a Rheumatologist, Dr. Chang 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. Chang. 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:
- Joint or Bursa Injection/Fluid Removal
- Arthrocentesis
- Major Joint Aspiration
- Bursa Injection
- Joint Fluid Removal
CPT Codes:
- 20610: Arthrocentesis, aspiration and/or injection, major joint or bursa (eg, shoulder, hip, knee, subacromial bursa); without ultrasound guidance
Does Dr. Chang accept my insurance?
Dr. Chang accepts most major insurance plans. Important: Please call our office at (714) 456-7720 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Chang accept in Orange, CA?
Dr. Chang in Orange, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
CalOptima
Crown Cork and Seal Company
Medicare
View All Insurances
Where is Dr. Chang's office located?
Dr. Ian Chang's Primary Practice
101 The City Dr S Bldg 30
Orange, CA 92868
(714) 456-7720
What is Dr. Chang's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Chang's National Provider Identifier (NPI) number is 1407116411.
What common questions do patients ask about Dr. Chang?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Chang
What is Dr. Ian Chang's specialty?
Dr. Chang is a Rheumatologist near Orange, CA. An internist specializing in the treatment of diseases affecting the joints, muscles, bones, and tendons. This specialist diagnoses and manages conditions such as arthritis, back pain, muscle strains, common sports injuries, and collagen-related diseases. Contact Dr. Chang to book an appointment today.
Is this Dr. Ian Chang affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Chang is affiliated with UCI Medical Center 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 Rheumatologist?
Explore Rheumatologist 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 Ian Chang accepting new patients in Orange, CA?
Yes, Dr. Ian Chang is accepting new patients at this time.
Does Dr. Ian Chang offer online booking?
Please contact Dr. Chang's office at (714) 456-7720 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Ian Chang?
Please contact Dr. Chang's office at (714) 456-7720 for information regarding telehealth appointment availability or for scheduling assistance.
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