29 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Sim, Internist in Downey, CA?
Dr. William Sim, MD is an Internist, who primarily practices in Downey, CA. He has been practicing for over 29 years and is board certified by the American Board of Internal Medicine. Dr. Sim graduated from Stanford University School of Medicine and completed his residency at Ucla Med Ctr, Internal Medicine. Dr. Sim is fluent in English and Korean, and is currently seeing new patients. Dr. Sim’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Sim’s office at (562) 806-0874.
Where did Dr. Sim go to medical school and complete their residency?
Residency: Ucla Med Ctr, Internal Medicine | University of California, Los Angeles (UCLA) Affiliated Hospitals | Harbor-UCLA Medical Center
Medical School: Stanford Univ Sch Of Med- Stanford Ca | Stanford University School of Medicine
Is Dr. Sim board certified in Internist?
Yes, Dr. William Sim, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Sim speak?
Dr. Sim and their clinical team can communicate with patients in the following languages:
English
Korean
What conditions does Dr. Sim treat?
As a Internist, Dr. Sim 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. Sim. 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:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Type 2 Diabetes
- Type 2 Diabetes with Chronic Kidney Disease
- Diabetes Type 2
- Type 2 diabetes
- Diabetic Kidney Problems
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
- Diabetic Chronic Kidney Disease
- Long-term Kidney Failure from Type 2 Diabetes
- Type 2 Diabetes End-Stage Renal Disease
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
- E1122: Type 2 diabetes mellitus with diabetic chronic kidney disease
Also known as:
- High Cholesterol
- Cholesterol
- Triglycerides
- Hyperlipidemia
- High lipids
- Dyslipidemia
- Hypercholesterolemia
- High blood cholesterol
- Elevated cholesterol
ICD-10 Codes:
- E785: Hyperlipidemia, unspecified
- E7800: Pure hypercholesterolemia, unspecified
Also known as:
- Primary Generalized Osteoarthritis
- Osteoarthritis of both knees
- Osteoarthritis of the left knee
- Osteoarthritis
- Primary Widespread Arthritis
- Idiopathic Generalized Osteoarthritis
- Generalized Degenerative Joint Disease
- Degenerative joint disease
- Wear-and-tear arthritis
- Arthrosis
- Joint degeneration
ICD-10 Codes:
- M150: Primary generalized (osteo)arthritis
- M170: Bilateral primary osteoarthritis of knee
- M1712: Unilateral primary osteoarthritis, left knee
Also known as:
- Dementia
- Cognitive decline
- Memory loss
- Brain disorder
ICD-10 Codes:
- F0390: Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
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:
- Other Chronic Pain Condition
- Chronic Pain
- Various chronic pain
- Unspecified long-term pain
- Persistent pain disorders
ICD-10 Codes:
- G8929: Other chronic pain
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:
- Anemia
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
ICD-10 Codes:
- D649: Anemia, unspecified
Also known as:
- Acute Bronchitis
- Chest cold
- Short-term bronchitis
- Acute chest infection
ICD-10 Codes:
- J209: Acute bronchitis, unspecified
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- High Blood Pressure Heart Disease
- Heart Disease
- High Blood Pressure
- Hypertensive Cardiomyopathy
- Heart Problems from High Blood Pressure
ICD-10 Codes:
- I119: Hypertensive heart disease without heart failure
Also known as:
- Other Pre-Procedure Examination
- Various pre-op checks
- Miscellaneous pre-surgery exams
- Other pre-treatment assessments
ICD-10 Codes:
- Z01818: Encounter for other preprocedural examination
Also known as:
- Abdominal Pain
- Stomach Ache
- Belly Pain
- Stomach Pain
ICD-10 Codes:
- R109: Unspecified abdominal pain
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:
- Hypothyroidism
- Congenital hypothyroidism
- Hypothyroidism (Underactive Thyroid)
- Underactive Thyroid
- Low Thyroid Function
ICD-10 Codes:
- E039: Hypothyroidism, unspecified
Which procedures does Dr. Sim perform as a Internist?
As a Internist, procedures performed by an Dr. William Sim 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. Sim's office.
Does Dr. Sim accept my insurance?
Dr. Sim accepts most major insurance plans. Important: Please call our office at (562) 806-0874 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Sim accept in Downey, CA?
Dr. Sim in Downey, 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
CalOptima
Centene
Crown Cork and Seal Company
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
FirstMerit Corporation
Other Health Care Provider
State of California
UnitedHealthcare
View All Insurances
Where is Dr. Sim's office located?
Dr. William Sim's Primary Practice
11480 Brookshire Ave Ste 200
Downey, CA 90241
(562) 806-0874
What is Dr. Sim's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Sim's National Provider Identifier (NPI) number is 1437256906.
What common questions do patients ask about Dr. Sim?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Sim
What is Dr. William Sim's specialty?
Dr. Sim is a Internist near Downey, 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. Sim to book an appointment today.Is this Dr. William Sim affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Sim is affiliated with PIH Health Whittier Hospital, UCI Medical Center, PIH Health Good Samaritan Hospital 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 William Sim accepting new patients in Downey, CA?
Yes, Dr. William Sim is accepting new patients at this time.
Does Dr. William Sim offer online booking?
Please contact Dr. Sim's office at (562) 806-0874 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with William Sim?
Please contact Dr. Sim's office at (562) 806-0874 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. William Sim have?
Dr. William Sim is certified by the American Board of Internal Medicine.
Other Internist Near Downey, CA
LR
Internist
Accepting patientsDr. Laura Ryan, MD is an Internist, who primarily practices in Downey, CA. She is board certified.
Downey, CA
MK
Internist
Accepting patientsDr. Maria Kokkinides, DO is an Internist, who primarily practices in Downey, CA with 2 additional practice locations. She is board certified.
Downey, CA
Accepting patientsDr. Alan Frischer, MD is an Internist, who primarily practices in Downey, CA. He has been practicing for over 34 years and is board certified.
Downey, CA