Blue Shield of California
Dr. Theodore Y Sy, MD
Gastroenterology*
Age 47
Dr. Theodore Y Sy, MD is a Gastroenterologist in Laguna Hills, CA.
Dr. Theodore Y Sy, MD
Laguna Hills, CA
Accepting new patients
23 years of experience
Offers telehealth
Dr. Theodore Y Sy, MD is a Gastroenterologist in Laguna Hills, CA.
About Dr. Theodore Y Sy, MD
Dr. Sy graduated from
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These providers are on the medical staff of MemorialCare.
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Accepted Insurance Plans
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Cigna
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Blue Cross and Blue ShieldBlue Cross Blue Shield
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Medicare
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Anthem Blue Cross Blue Shield
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MultiPlan PPO
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Curative PPOCurative EPOCurative PPO Plus
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Balanced (Prudent Buyer)-CA PPOPERS Traditional-CA HMOBlue Cross (Prudent Buyer) - Small Group-CA PPOSilver (Prudent Buyer PPO/ Small Grp)-CA PPOPERS Select-CA HMOGold EPO (Prudent Buyer / Small Grp)-CA PPOPlatinum (CaliforniaCare HMO/ Small Grp) HMOSilver Advantage-CA PPOTraditionalBronze Select (Select PPO/ Small Grp)-CA PPOBronze EPO (Prudent Buyer EPO/ Small Grp)-CASelect-CA HMOUC Care-CA PPOSilver Select (Select / Small Grp)-CA HMOTenet Network-CA PPOBlue Cross (Prudent Buyer) - Student Health-CA PPODignity Health EPO / PPO-CABlue Cross-CA HMO-POSTraditional PPOBronze (Prudent Buyer PPO/ Small Grp)-CA PPOAdvantage-CA HMOSilver EPO (Prudent Buyer EPO/ Small Grp)-CANational (BlueCard) PPOSelect PPO (Select Network)-CA PPOGold (CaliforniaCare HMO/ Small Grp) HMOSilver Select (Select PPO/ Small Grp)-CA PPOBlue Cross (Prudent Buyer) - Large Group-CA PPODignity Health PHC EPO & HDP/HSA-CAPlatinum Select (Select PPO/ Small Grp)-CA PPOSelect Plus-CA HMOAdvantage-CA PPOSilver (CaliforniaCare HMO/ Small Grp) HMOUC Health Savings Plan-CAGold (Prudent Buyer PPO/ Small Grp)-CA PPOUC Medicare without Prescription Drugs-CA PPOUC Medicare with Prescription Drugs-CA PPOPlatinum (Prudent Buyer PPO/ Small Grp)-CA PPOUC CORE-CA PPODignity Health Custom Advantage-CA HMOSelect-CA PPOBlue Cross (CACare) - Small Group-CA HMOPERS Choice / PERSCare Providers-CA PPOUCSHIP-CA PPOBronze EPO (Prudent Buyer / Small Grp)-CA PPOBlue Cross (Prudent Buyer) - Individual-CA PPOUSC Plan (Two Tiered Network)-CA HMOSelect (PERS Select Providers)-CA PPONational (BlueCard Basic) PPOUC High Option Supplement to Medicare-CAVivity-CA HMOBlue Cross (CACare) - Large Group-CA HMOGold Advantage-CA PPOGold Select (Select PPO/ Small Grp)-CA PPOBlue Cross (CACare) - Individual-CA HMOGold Select (Select / Small Grp)-CA HMOGold EPO (Prudent Buyer EPO/ Small Grp)-CAEPO-CADignity Health Ventura EPO/PPO-CAMemorialCare Custom-CA PPOUC Resident and Fellows-CA PPOPlatinum Select (Select / Small Grp)-CA HMOLumenos Plans-CA PPO
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Premera Blue Cross Blue Shield PPO
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Aetna
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HealthyBlue AdvantageHealthyBlue 2.0
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Choice Care PPO
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Health Net
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United Healthcare
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First Health (Coventry Health Care)
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Optima Health
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Commercial Insurance Company
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Blue Cross Blue Shield of California
Where Dr. Theodore Y Sy, MD Sees Patients
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Theodore SY, MD26538 Moulton Pkwy Ste 38E, Laguna Hills, CA 92653Monday08:00 - 17:00Tuesday08:00 - 17:00Wednesday08:00 - 17:00Thursday08:00 - 17:00Friday08:00 - 17:00SaturdayClosedSundayClosed
What Patients Say
Likelihood to recommend Dr. Sy
5.0
Based on 1 Reviews
5 Stars (1)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)
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Patient Reviews
Dec 27, 2025
Dr. Sy listens attentively and he never makes you feel rushed. He cares about what his patients have to say about their health and how they are feeling.
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Meet Dr. Theodore Y Sy, MD
Specialties*
Gastroenterology
Internal Medicine
- *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Does Dr. Sy communicate via email?
11 users said yes.
Yes
(11)
No
(2)
Does Dr. Sy offer telehealth services or virtual visits?
9 users said yes.
Yes
(9)
No
(1)
Does Dr. Sy offer an online patient portal?
10 users said yes.
Yes
(10)
No
(1)
Does Dr. Sy have free onsite parking?
13 users said yes.
Yes
(13)
No
(0)
Does Dr. Sy offer weekend visits?
1 user said yes.
Yes
(1)
No
(8)
Does Dr. Sy offer evening visits?
2 users said yes.
Yes
(2)
No
(6)
Does Dr. Sy specialize in working with children or adolescents?
No responses yet.
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(0)
No
(0)
Does Dr. Sy specialize in working with seniors?
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Yes
(0)
No
(0)
Does Dr. Sy specialize in couples therapy?
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(0)
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(0)
Does Dr. Sy specialize in working with LGBTQ+ community?
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Does Dr. Sy accept insurance?
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FAQs About Dr. Sy's Practice
Find contact information here to make an appointment.
A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.
New patients are generally accepted by Dr. Theodore Y Sy, MD. To arrange an appointment, call the number on Dr. Sy's profile.
Dr. Sy in specializes in Gastroenterology. See more on Sharecare.
Dr. Sy frequently treats the following conditions: Hemorrhoids, Constipation and Intestinal Diverticulitis. See more on Sharecare.
Dr. Sy's office is located at 26538 Moulton Pkwy Ste 38E Laguna Hills, CA 92653. You can find other locations and directions on Sharecare.
Dr. Sy provides telehealth services. Please contact the office to determine whether you are eligible.
Dr. Theodore Y Sy, MD is affiliated with MemorialCare Saddleback Medical Center.
Yes, Dr. Theodore Y Sy, MD holds board certification in Gastroenterology.
Dr. Theodore Y Sy, MD has a star rating of 5.0/5. See more patient feedback on Sharecare.
Training & Medical Education
Medical Education
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Northwestern University
2003
Board Certifications
- Gastroenterology
Internship
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University of California Irvine Medical Center
2004
Hospitals Where Dr. Theodore Y Sy, MD Practices
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MemorialCare Saddleback Medical Center
24451 Health Center Dr, Laguna Hills, CA
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