20 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Siu, Internist in Laguna Hills, CA?
Dr. Curtis Siu, MD is an Internist, who primarily practices in Laguna Hills, CA. He has been practicing for over 20 years and is board certified by the American Board of Internal Medicine. Dr. Siu graduated from University of California and completed his residency at Huntington Mem Hosp, Internal Medicine. He is a member of the MemorialCare Physician Society. Dr. Siu is fluent in English and Chinese, and is currently seeing new patients. Dr. Siu’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Siu’s office at (949) 420-5988.
Where did Dr. Siu go to medical school and complete their residency?
Residency: Huntington Mem Hosp, Internal Medicine | Huntington Mem Hospital
Medical School: University of Ca, San Diego, Sch of Med, La Jolla Ca | University of California
Is Dr. Siu board certified in Internist?
Yes, Dr. Curtis Siu, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Siu speak?
Dr. Siu and their clinical team can communicate with patients in the following languages:
Chinese
English
What conditions does Dr. Siu treat?
As a Internist, Dr. Siu 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. Siu. 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:
- Routine Adult Health Checkup
- Health Checkup
- Adult physical exam
- Annual wellness visit for adults
- General adult medical exam
ICD-10 Codes:
- Z0000: Encounter for general adult medical examination without abnormal findings
Also known as:
- Type 2 Diabetes
- Type 2 Diabetes with High Blood Sugar
- Diabetes Type 2
- Type 2 diabetes
- Hyperglycemia
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
- Diabetic Hyperglycemia
- High Blood Glucose
- High Sugar Levels
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
- E1165: Type 2 diabetes mellitus with hyperglycemia
Also known as:
- General Disorder Screening
- Cardiovascular Disorder Screening
- Health Screening
- General Health Check
- Disease Screening
- Medical Disorder Screening
- Heart Disease Screening
- Vascular Disease Check
- Cardiac Screening
ICD-10 Codes:
- Z1389: Encounter for screening for other disorder
- Z136: Encounter for screening for cardiovascular disorders
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- General Counseling Services
- Personal Counseling
- Life Coaching
- Support Services
ICD-10 Codes:
- Z7189: Other specified counseling
Also known as:
- Other High Cholesterol
- Cholesterol
- Triglycerides
- Other hyperlipidemia
- Other high lipids
- Dyslipidemia
ICD-10 Codes:
- E7849: Other hyperlipidemia
Also known as:
- Depression Screening
- Depression
- Health Screening
- Depression Test
- Mental Health Check for Depression
- Mood Disorder Screening
ICD-10 Codes:
- Z1331: Encounter for screening for depression
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- High Cholesterol
- Cholesterol
- Triglycerides
- Hyperlipidemia
- High lipids
- Dyslipidemia
ICD-10 Codes:
- E785: Hyperlipidemia, unspecified
Also known as:
- High Blood Sugar
- Hyperglycemia
- Elevated Glucose
- Unspecified High Blood Sugar
ICD-10 Codes:
- R739: Hyperglycemia, unspecified
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:
- Vitamin D Deficiency
- Low Vitamin D Levels
- Lack of Vitamin D
- Hypovitaminosis D
ICD-10 Codes:
- E559: Vitamin D deficiency, unspecified
Also known as:
- Heart Failure
- Congestive Heart Failure
- CHF
- Cardiac Insufficiency
ICD-10 Codes:
- I509: Heart failure, unspecified
Also known as:
- History of Other Medical Treatment
- Past Medical Procedures
- Previous Medical Care
- History of Past Treatments
ICD-10 Codes:
- Z9289: Personal history of other medical treatment
Also known as:
- Mammogram for Breast Cancer Screening
- Health Screening
- Mammography
- Breast Cancer Screening (PDQ®)
- Mammograms
- Breast X-ray
- Breast Cancer Check
ICD-10 Codes:
- Z1231: Encounter for screening mammogram for malignant neoplasm of breast
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:
- Chronic Kidney Disease, Stage 3
- Chronic Kidney Disease
- Chronic Kidney Disease (CKD)
- CKD Stage 3
- Moderate Chronic Kidney Disease
ICD-10 Codes:
- N1830: Chronic kidney disease, stage 3 unspecified
Also known as:
- Other Specific B Vitamin Deficiency
- B Vitamins
- Malnutrition
- Specific B Vitamin Shortage
- Less Common B Vitamin Deficiency
- Rare B Vitamin Deficiency
ICD-10 Codes:
- E538: Deficiency of other specified B group vitamins
What procedures does Dr. Siu perform?
As a Internist, Dr. Siu 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. Siu. 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:
- Colonoscopy with Biopsy
- Colonoscopy with Polyp Removal
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
CPT Codes:
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
Also known as:
- Upper Endoscopy with Biopsy
- Biopsy
- Endoscopy
- EGD with Biopsy
- Gastroscopy with Biopsy
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple
Also known as:
- Cataract Removal with Lens Implant
- Extracapsular cataract extraction
- Phacoemulsification
- IOL implantation
CPT Codes:
- 66984: Extracapsular cataract removal with insertion of intraocular lens prosthesis (1 stage procedure), manual or mechanical technique (eg, irrigation and aspiration or phacoemulsification); without endoscopic cyclophotocoagulation
Also known as:
- Lumbar or Sacral Epidural Injection with Imaging
- Epidural Steroid Injection
- Caudal Epidural Injection
- Spinal Nerve Block
- Pain Management Injection
CPT Codes:
- 62323: Injection(s), of diagnostic or therapeutic substance(s) (eg, anesthetic, antispasmodic, opioid, steroid, other solution), not including neurolytic substances, including needle or catheter placement, interlaminar epidural or subarachnoid, lumbar or sacral (caudal); with imaging guidance (ie, fluoroscopy or CT)
Does Dr. Siu accept my insurance?
Dr. Siu accepts most major insurance plans. Important: Please call our office at (949) 420-5988 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Siu accept in Laguna Hills, CA?
Dr. Siu in Laguna Hills, 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
Centene
Crown Cork and Seal Company
Department of Defense / Tricare
Humana
Medicare
Monarch HealthCare
OptumRx
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Siu's office located?
Dr. Curtis Siu's Primary Practice
24221 Calle de la Louisa Ste 200
Laguna Hills, CA 92653
(949) 420-5988
Recognitions
Memberships & Associations
MemorialCare Physician Society
Member
What is Dr. Siu's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Siu's National Provider Identifier (NPI) number is 1386613081.
What common questions do patients ask about Dr. Siu?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Siu
What is Dr. Curtis Siu's specialty?
Dr. Siu is a Internist near Laguna Hills, CA.
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. Siu to book an appointment today.Is this Dr. Curtis Siu affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Siu is affiliated with Providence Mission Hospital Mission Viejo, Hoag Hospital Newport Beach, UCI Medical Center which are a Castle Connolly Top Hospitals. 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 Curtis Siu accepting new patients in Laguna Hills, CA?
Yes, Dr. Curtis Siu is accepting new patients at this time.
Does Dr. Curtis Siu offer online booking?
Please contact Dr. Siu's office at (949) 420-5988 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Curtis Siu?
Please contact Dr. Siu's office at (949) 420-5988 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Curtis Siu have?
Dr. Curtis Siu is certified by the American Board of Internal Medicine.
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