EL
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Leong, Anesthesiologist in Ontario, CA?
Dr. Erica Leong is an Anesthesiologist, who primarily practices in Ontario, CA with 2 additional practice locations. Dr. Leong is fluent in English and Spanish, and is currently seeing new patients. Dr. Leong’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Leong’s office.
What languages does Dr. Leong speak?
Dr. Leong and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does an Anesthesiologist like Dr. Leong typically treat?
As an Anesthesiologist, Dr. Leong 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. Leong. 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. Learn more about our claims-based healthcare methodology.
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:
- Severe Obesity
- Obesity
- Helping Your Child Who Is Overweight
- Take Charge of Your Health: A Guide for Teenagers
- Understanding Adult Overweight & Obesity
- Morbid Obesity
- Extreme Obesity
- Class 3 Obesity
ICD-10 Codes:
- E6601: Morbid (severe) obesity due to excess calories
What procedures does an Anesthesiologist like Dr. Leong typically perform?
As an Anesthesiologist, procedures performed by Dr. Erica Leong may include:
- Airway Management
- Anesthesia Consultation
- Anti-Ischemic Therapy
- Anti-Viral Therapy
- Arterial Blood Gas Sampling
- Balloon Pump
- Critical Care Anesthesia
- Endotracheal Intubation
Please contact Dr. Leong's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Leong accept my insurance?
Dr. Leong accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Leong accept in Ontario, CA?
Dr. Leong in Ontario, 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 Corporation
Cigna Group
Medicare
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Leong's office located?
What is Dr. Leong's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Leong's National Provider Identifier (NPI) number is 1366604126.
What common questions do patients ask about Dr. Leong?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Leong
What is Dr. Erica Leong's specialty?
Dr. Leong is a Anesthesiologist near Ontario, CA.
What does an Anesthesiologist do?
A physician specialist in pain management and maintaining or restoring a stable state during and right after surgical, obstetric, or diagnostic operations is known as an anesthesiologist. This specialist assesses each patient's risk of surgery and tries to improve their condition before to, during, and following the procedure. Anesthesiologists provide medical management, pain management, and critical care consults in addition to these vital management responsibilities. They are responsible for managing patients with severe illnesses or injuries, supervising the recovery period following anesthesia, directing resuscitation efforts for patients experiencing cardiac or respiratory emergencies that may require artificial ventilation, and diagnosing and treating both acute and chronic pain, including pain related to cancer.
Is this Dr. Erica Leong affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Leong is affiliated with Kaiser Permanente Fontana Medical Center, Providence St. Jude 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
When to see an Anesthesiologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Anesthesiologist. Explore 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 Erica Leong accepting new patients in Ontario, CA?
Yes, Dr. Erica Leong is accepting new patients at this time.
Does Dr. Erica Leong offer online booking?
Please contact Dr. Leong's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Erica Leong?
Please contact Dr. Leong's office for information regarding telehealth appointment availability or for scheduling assistance.
Other Anesthesiologist Near Ontario, CA
AL
Anesthesiologist
Dr. Andy Liu, MD is an Anesthesiologist, who primarily practices in Fontana, CA with 2 additional practice locations.
Fontana, CA
SK
Pain Medicine Specialist - Anesthesiologist
Dr. Saman Kohanof, DO is a Pain Medicine Specialist - Anesthesiologist, who primarily practices in Fontana, CA with 1 additional practice location.
Fontana, CA

Anesthesiologist
Dr. Joshua Milius, MD is an Anesthesiologist, who primarily practices in Fontana, CA with 1 additional practice location. He is board certified.
Fontana, CA