3
1 Rating
Summary
Dr. Alexander Sy is a pulmonologist who specializes in critical care medicine and internal medicine, bringing four decades of medical experience to patient care. He earned his medical degree from the University of the Philippines Manila College of Medicine and completed his residency training at St. Agnes Hospital in Baltimore. His extensive background spans the comprehensive treatment of lung conditions and the intensive care of critically ill patients.
Dr. Sy practices at Jerry L Pettis Memorial VA Medical Center in Loma Linda, California, and maintains an affiliation with Duke Raleigh Hospital. He focuses on treating various forms of sleep apnea, including obstructive sleep apnea and sleep breathing disorders in children. His clinical expertise includes performing at-home sleep studies and polysomnograms to diagnose sleep-related breathing conditions. Patients have given him an average rating of 3.0 on Vitals.
Dr. Sy practices at Jerry L Pettis Memorial VA Medical Center in Loma Linda, California, and maintains an affiliation with Duke Raleigh Hospital. He focuses on treating various forms of sleep apnea, including obstructive sleep apnea and sleep breathing disorders in children. His clinical expertise includes performing at-home sleep studies and polysomnograms to diagnose sleep-related breathing conditions. Patients have given him an average rating of 3.0 on Vitals.
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Quick Facts
- 40 years of experience
- 17 insurance plans accepted
- St Agnes Hospital Baltimore
- 3 specialties
- 14 areas of expertise
- 3 board certifications
- 1 hospital affiliation
- 1 office location
- Male
Office Location
Compare with Similar Doctors
 | |  |  |
| Dr. Alexander Ong Sy, MD | Dr. Paul Marc Umof, MD | Dr. Hesuk Helen Baek, MD | Dr. Anita Trikha, MD |
| Pulmonology | Preventative Medicine | Hospital Medicine | Allergy & Immunology |
| 40 Years of Experience | 53 Years of Experience | 26 Years of Experience | 29 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks Spanish, English | Speaks Korean, Spanish | Speaks Spanish, Russian | |
| Loma Linda , CA | Chino , CA | Loma Linda , CA | Loma Linda , CA |
| Med School: University Of The Philippines Manila College Of Medicine | Med School: Northwestern University The Feinberg School Of Medicine | Med School: Medical College Of Georgia At Augusta University | Med School: Renaissance School Of Medicine At Stony Brook University |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Alexander Ong Sy
Medical Specialties
Dr. Alexander Ong Sy has the following 3 specialties
Specialty Expertise
Dr. Alexander Ong Sy has the following 14 areas of expertise
Certifications, License, & Education
40 Years Experience
MEDICAL LICENSE
Medical Doctor, California, 2026, Expired
EDUCATION & TRAINING
Residency
St Agnes Hospital Baltimore
Medical School
University Of The Philippines Manila College Of MedicineGraduated in 1986
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Frequently Asked Questions
- Is Dr. Alexander Sy accepting new patients?
- Dr. Alexander Sy has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Where is Dr. Alexander Sy's office located?
- Dr. Alexander Sy's office is located at 11201 Benton St, Loma Linda, CA, 92357.
- Does Dr. Alexander Sy accept virtual/telehealth appointments?
- Dr. Alexander Sy has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Which hospitals is Dr. Alexander Sy affiliated with?
- Dr. Alexander Sy is affiliated with Duke Raleigh Hospital.
- Does Dr. Alexander Sy accept my insurance?
- You can see the insurance plans that Dr. Alexander Sy accepts on their Vitals profile.
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