MS
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Siew, Internist in Westminster, CA?
Dr. Melissa Siew, MD is an Internist, who primarily practices in Westminster, CA with 2 additional practice locations. She is board certified. Dr. Siew is fluent in English and Spanish, and is currently seeing new patients. Dr. Siew’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Siew’s office at (714) 379-3221.
What languages does Dr. Siew speak?
Dr. Siew and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Siew treat?
As a Internist, Dr. Siew 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. Siew. 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:
- Alzheimer's Disease
- Late-Onset Alzheimer's Disease
- Alzheimer's Disease Fact Sheet
- AD', 'Alzheimer's Dementia
- Memory Loss Disease
- Sporadic Alzheimer's', 'Alzheimer's in Older Adults
ICD-10 Codes:
- G309: Alzheimer's disease, unspecified
- G301: Alzheimer's disease with late onset
Also known as:
- Hardening of the Arteries in the Heart without Chest Pain
- Atherosclerosis
- Coronary Artery Disease
- Silent Coronary Artery Disease
- Asymptomatic Atherosclerosis
ICD-10 Codes:
- I2510: Atherosclerotic heart disease of native coronary artery without angina pectoris
Also known as:
- Urinary Tract Infection
- UTI
- Bladder infection
- Kidney infection
- Urine infection
ICD-10 Codes:
- N390: Urinary tract infection, site not specified
Also known as:
- Unsteadiness on Feet
- Walking Problems
- Feeling Unsteady
- Balance Problems
- Dizziness While Standing
ICD-10 Codes:
- R2681: Unsteadiness on feet
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:
- Sepsis
- Blood Poisoning
- Septicemia
- Systemic Bacterial Infection
ICD-10 Codes:
- A419: Sepsis, unspecified organism
Also known as:
- Age-Related Brain Degeneration
- Lewy Body Dementia
- Dementia
- Dementia with Lewy bodies
- Senile Dementia
- Brain Degeneration in Elderly
- Dementia with Lewy Bodies
- DLB
- Lewy Body Disease
ICD-10 Codes:
- G311: Senile degeneration of brain, not elsewhere classified
- G3183: Neurocognitive disorder with Lewy bodies
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Heart Failure
- Congestive Heart Failure
- CHF
- Cardiac Insufficiency
ICD-10 Codes:
- I509: Heart failure, unspecified
Also known as:
- Parkinson's Disease
- PD
- Shaking Palsy
- Paralysis Agitans
ICD-10 Codes:
- G20: Parkinson's disease
Also known as:
- Acute Respiratory Failure with Low Oxygen
- Respiratory Failure
- Sudden lung failure with low oxygen
- Hypoxic respiratory failure
- Acute breathing failure with hypoxia
ICD-10 Codes:
- J9601: Acute respiratory failure with hypoxia
Also known as:
- Ataxia
- Movement Disorder
- Loss of Coordination
- Clumsiness
- Balance Disorder
ICD-10 Codes:
- R270: Ataxia, unspecified
Also known as:
- Chronic Venous Insufficiency
- Vascular Disease
- CVI
- Venous Reflux Disease
- Leg Vein Incompetence
- Peripheral Venous Insufficiency
ICD-10 Codes:
- I872: Venous insufficiency (chronic) (peripheral)
Also known as:
- Urinary Device Fitting and Adjustment
- Urological Device Fitting
- Bladder Device Adjustment
- Catheter Fitting
ICD-10 Codes:
- Z466: Encounter for fitting and adjustment of urinary device
Also known as:
- Pneumonia
- Lung Infection
- Chest Infection
- Pneumonitis
ICD-10 Codes:
- J189: Pneumonia, unspecified organism
Also known as:
- Fainting
- Syncope
- Passing out
- Collapse
ICD-10 Codes:
- R55: Syncope and collapse
Also known as:
- Generalized Muscle Weakness
- Muscle Disorder
- Overall Body Weakness
- Widespread Muscle Weakness
- Systemic Muscle Weakness
ICD-10 Codes:
- M6281: Muscle weakness (generalized)
Also known as:
- Psychosis
- Psychotic Disorder
- Psychotic break
- Mental break
- Psychotic episode
ICD-10 Codes:
- F29: Unspecified psychosis not due to a substance or known physiological condition
Which procedures does Dr. Siew perform as a Internist?
As a Internist, procedures performed by an Dr. Melissa Siew may include:
- Ambulatory Care Consultation
- Annual Check Up
- Annual Physical
- Aromatherapy
- Bladder and Bowel Management
- Blood Pressure Testing
- Bowel and Bladder Management
- Certified Medical Examination for Commercial Driver / Vessel Master
For detailed information, please contact Dr. Siew's office.
Does Dr. Siew accept my insurance?
Dr. Siew accepts most major insurance plans. Important: Please call our office at (714) 379-3221 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Siew accept in Westminster, CA?
Dr. Siew in Westminster, 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
Humana
Kaiser Permanente
Medicaid
Medicare
Monarch HealthCare
Scan Health Plan
UnitedHealthcare
View All Insurances
Where is Dr. Siew's office located?
Dr. Melissa Siew's Primary Practice
7955 Westminster Blvd
Westminster, CA 92683
(714) 379-3221
Dr. Melissa Siew's Practice 2
17360 Brookhurst St
Fountain Valley, CA 92708
(949) 340-9530
What is Dr. Siew's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Siew's National Provider Identifier (NPI) number is 1780096099.
What common questions do patients ask about Dr. Siew?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Siew
What is Dr. Melissa Siew's specialty?
Dr. Siew is a Internist near Westminster, 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. Siew to book an appointment today.Is this Dr. Melissa Siew affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Siew is affiliated with Providence Mission Hospital Mission Viejo 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 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 Melissa Siew accepting new patients in Westminster, CA?
Yes, Dr. Melissa Siew is accepting new patients at this time.
Does Dr. Melissa Siew offer online booking?
Please contact Dr. Siew's office at (714) 379-3221 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Melissa Siew?
Please contact Dr. Siew's office at (714) 379-3221 for information regarding telehealth appointment availability or for scheduling assistance.
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