0 reviews
Summary
Dr. Alex Leung treats sepsis, pediatric sepsis, and respiratory failure, and practices internal medicine, family medicine, and hospital medicine. He has 23 years of experience and is affiliated with Saint Jude Hospital in Fullerton, California. Dr. Leung earned his medical degree from the Medical College of Wisconsin and completed his residency at St. Mary Medical Center.
Overview based on verified provider data
Quick Facts
- 23 years of experience
- speaks English
- St Mary Medical Center
- 3 specialties
- 19 areas of expertise
- 1 hospital affiliation
- 2 office locations
- Male
Office Locations
Dr. Alex Shingyu Leung has 2 locationsSaint Jude Hospital
101 E Valencia Mesa DrFullerton, CA 92835 Tel: (714) 992-3000
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
![]() | ![]() | ![]() | |
| Dr. Alex Shingyu Leung, MD | Dr. Norman Chien, MD | Dr. George Mousa, MD | Dr. Adewumi Bakare DMSc, PA-C |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 23 Years of Experience | 35 Years of Experience | 17 Years of Experience | |
| No Virtual Visit Option | No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English | Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) | |
| Fullerton , CA | Pasadena , CA | Upland , CA | Mesquite , TX |
| Med School: Medical College Of Wisconsin | Med School: National Taiwan University College of Medicine | Med School: University Of Aleppo Faculty Of Medicine | Med School: University of Lynchburg - DMSc |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Alex Shingyu Leung
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Alex Shingyu Leung has the following 3 specialties
Specialty Expertise
Dr. Alex Shingyu Leung has the following 19 areas of expertise
Certifications, License, & Education
23 Years Experience
Dr. Alex Shingyu Leung holds an expired medical license in the state of California.
Medical License
| Position | State | Year | Status |
|---|---|---|---|
| Medical Doctor | California | 2026 | Expired |
Education & Training
Residency
Completed their residency at St Mary Medical Center.
Medical School
Graduated from Medical College Of Wisconsin in 2003.
NPI Number
Dr. Leung's NPI number is 1669414512.
Similar doctors
Frequently Asked Questions
- What languages does Dr. Alex Leung speak?
- Dr. Alex Leung speaks English.
- How can I make an appointment with Dr. Alex Leung?
- You can find contact information for Dr. Alex Leung here on Vitals.
- Does Dr. Alex Leung accept virtual/telehealth appointments?
- Dr. Alex Leung has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is Dr. Alex Leung's office located?
- Dr. Alex Leung's office is located at 101 E Valencia Mesa Dr, Fullerton, CA, 92835.
- Which hospitals is Dr. Alex Leung affiliated with?
- Dr. Alex Leung is affiliated with Saint Jude Hospital.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.



