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25 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Liu, Internist in Fontana, CA?
Dr. Les Liu, MD is an Internist, who primarily practices in Fontana, CA with 1 additional practice location. He has been practicing for over 25 years and is board certified by the American Board of Internal Medicine. Dr. Liu completed his residency at Univ Ca Irvine Med Ctr, Internal Medicine. Dr. Liu is fluent in English and Chinese, and is currently seeing new patients. Dr. Liu’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. Liu’s office at (909) 427-3910.
Where did Dr. Liu go to medical school and complete their residency?
Residency: Univ Ca Irvine Med Ctr, Internal Medicine
Medical School: Northwestern Uniiversity
Is Dr. Liu board certified in Internist?
Yes, Dr. Les Liu, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Liu speak?
Dr. Liu and their clinical team can communicate with patients in the following languages:
Chinese
English
What conditions does Dr. Liu treat?
As a Internist, Dr. Liu 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. Liu. 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:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Iron Deficiency Anemia
- Anemia
- Iron
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
ICD-10 Codes:
- D509: Iron deficiency anemia, unspecified
- D649: Anemia, unspecified
Also known as:
- Type 2 Diabetes
- Diabetes Type 2
- Type 2 diabetes
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
Also known as:
- General Health Screening
- Health Screening
- Routine Check-up
- Preventive Health Exam
- Wellness Screening
ICD-10 Codes:
- Z139: Encounter for screening, unspecified
Also known as:
- Tuberculosis Screening
- TB test
- PPD test
- Tuberculosis exposure check
ICD-10 Codes:
- Z111: Encounter for screening for respiratory tuberculosis
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:
- Transgender Identity
- Gender Dysphoria
- Transsexual Identity
- Gender Transition
ICD-10 Codes:
- F640: Transsexualism
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:
- Personal Choice Not to Vaccinate
- Vaccine Refusal
- Patient Declined Vaccination
- Unvaccinated by Choice
ICD-10 Codes:
- Z2820: Immunization not carried out because of patient decision for unspecified reason
Also known as:
- Multiple Sclerosis
- MS
- Demyelinating Disease
ICD-10 Codes:
- G35: Multiple sclerosis
Also known as:
- Low Magnesium Levels
- Metabolic Disorder
- Hypomagnesemia
- Magnesium Deficiency
- Magnesium Imbalance
ICD-10 Codes:
- E8342: Hypomagnesemia
Also known as:
- Pneumonia
- Lung Infection
- Chest Infection
- Pneumonitis
ICD-10 Codes:
- J189: Pneumonia, unspecified organism
Also known as:
- Atrial Fibrillation
- Afib
- A-fib
- Irregular heart rhythm
ICD-10 Codes:
- I480: Paroxysmal atrial fibrillation
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:
- Mucopolysaccharidosis Type II
- Carbohydrate Metabolism Disorder
- Mucopolysaccharidosis type II
- MPS II
- Hunter syndrome
ICD-10 Codes:
- E761: Mucopolysaccharidosis, type II
Also known as:
- Migraine
- Migraine headache
- Severe headache
- Vascular headache
ICD-10 Codes:
- G43909: Migraine, unspecified, not intractable, without status migrainosus
Also known as:
- Sepsis
- Blood Poisoning
- Septicemia
- Systemic Bacterial Infection
ICD-10 Codes:
- A419: Sepsis, unspecified organism
Also known as:
- Other Specified Aftercare
- Specific post-op care
- Specialized recovery care
- Follow-up for specific procedures
ICD-10 Codes:
- Z5189: Encounter for other specified aftercare
Which procedures does Dr. Liu perform as a Internist?
As a Internist, procedures performed by an Dr. Les Liu 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. Liu's office.
Does Dr. Liu accept my insurance?
Dr. Liu accepts most major insurance plans. Important: Please call our office at (909) 427-3910 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Liu accept in Fontana, CA?
Dr. Liu in Fontana, 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
Elevance Health Inc. (formerly Anthem)
Heritage Health
Inland Empire
Inland Faculty Medical Group, Inc
Kaiser Permanente
Medicare
Other Health Care Provider
UnitedHealthcare
View All Insurances
Where is Dr. Liu's office located?
What is Dr. Liu's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Liu's National Provider Identifier (NPI) number is 1386703999.
What common questions do patients ask about Dr. Liu?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Liu
What is Dr. Les Liu's specialty?
Dr. Liu is a Internist near Fontana, 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. Liu to book an appointment today.Is this Dr. Les Liu affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Liu is affiliated with Kaiser Permanente Fontana Medical Center, Casa Colina Hospital And Centers For Healthcare, San Antonio Regional 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 Les Liu accepting new patients in Fontana, CA?
Yes, Dr. Les Liu is accepting new patients at this time.
Does Dr. Les Liu offer online booking?
Please contact Dr. Liu's office at (909) 427-3910 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Les Liu?
Please contact Dr. Liu's office at (909) 427-3910 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Les Liu have?
Dr. Les Liu is certified by the American Board of Internal Medicine.
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