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Dr. Theodore Y Sy, MD

Dr. Theodore Y Sy, MD

Gastroenterology*
20+ years of experience

Dr. Theodore Y Sy, MD is a gastroenterologist in Laguna Hills, CA and has over 20 years of experience in the medical field. He graduated from Northwestern University Feinberg School of Medicine in 2003. He is affiliated with medical facilities MemorialCare Saddleback Medical Center and MemorialCare Orange Coast Medical Center. He is accepting new patients and telehealth appointments.

4.8 Star Rating
Based on 55 reviews 4.8 Star Rating (55 reviews)

Practice

26538 Moulton Pkwy Ste 38E Laguna Hills, CA 92653
Telehealth available

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Dr. Sy is a Healthgrades Choice provider in Gastroenterology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions

Experience Check

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Dr. Sy's Reviews

Likelihood to recommend Dr. Sy

4.8

55 ratings, 42 with a written review
5 Star
95%
95%
4 Star
0%
0%
3 Star
0%
0%
2 Star
0%
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1 Star
5%
5%

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RecentHighestLowestMost Helpful
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
M Felce – Feb 26, 2025
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 people found this helpful
Helpful
Ed T @OC – Mar 01, 2024
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Mar 22, 2023
×Post a ResponseAre you Dr. Theodore Y Sy, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Feb 23, 2023
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What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't trust the provider's decisions
2 people found this helpful
Helpful
Lisa McConnell – Nov 04, 2022
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Barbel C. Dagostino – Sep 27, 2022
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
What could be improved
No results
Helpful
Som Ganguly – Sep 02, 2022
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Volker K. – Aug 19, 2022
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Highest Recommendation - Great GI Doctor – Jun 23, 2022
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
Cynthia Nerison – May 10, 2022
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
Oct 27, 2021
×Post a ResponseAre you Dr. Theodore Y Sy, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Oct 01, 2021
×Post a ResponseAre you Dr. Theodore Y Sy, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Aug 01, 2021
×Post a ResponseAre you Dr. Theodore Y Sy, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Colleen S. – Jun 17, 2021
×Post a ResponseAre you Dr. Theodore Y Sy, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jun 13, 2021
×Post a ResponseAre you Dr. Theodore Y Sy, MD?
What went well
  • Listened & answered questions
  • Staff friendliness
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Bradford A Upton – May 25, 2021
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Apr 22, 2021
×Post a ResponseAre you Dr. Theodore Y Sy, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Apr 15, 2021
×Post a ResponseAre you Dr. Theodore Y Sy, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Charles Porter – Mar 19, 2021
×Post a ResponseAre you Dr. Theodore Y Sy, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Nov 17, 2020
×Post a ResponseAre you Dr. Theodore Y Sy, MD?

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About Me

care philosophy

Our goal is to provide medical services that enhance the health of the people and communities we serve We are committed to providing the care you need when and where you need it at a low cost and with excellence We re here to be your partner in...read more

biography

Dr. Theodore Sy is a MemorialCare Medical Group physician who specializes in Gastroenterology. He currently works at the Laguna Hills location. MemorialCare Medical Group is an award-winning team of health care professionals dedicated to providing...read more
  • Gastroenterology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • University Of California Irvine Medical Center

    Internship Hospital, 2004
  • Northwestern University Feinberg School Of Medicine

    Medical School, 2003
American Board of Medical Specialties®
American Board of Internal Medicine®
Gastroenterology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Dr. Sy is a Healthgrades Choice provider in Gastroenterology

    Read our methodology

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    Locations

    Practice

    MemorialCare Medical Group26538 Moulton Pkwy Ste 38E Laguna Hills, CA 92653
    1

    Practice

    MemorialCare Medical Foundation15 Mareblu Ste 100 Aliso Viejo, CA 92656
    2

    Practice

    MemorialCare Medical Group18035 Brookhurst St Fountain Valley, CA 92708
    3
    • Call
    • Fax
    • Hours
      • Mon: open 24 hours
      • Tue: open 24 hours
      • Wed: open 24 hours
      • Thu: open 24 hours
      • Fri: open 24 hours
      • Sat: open 24 hours
      • Sun: open 24 hours
    • Directions

    Practice

    MemorialCare Medical Group Inc.23512 Madero Mission Viejo, CA 92691
    4
    • Call
    • Fax
    • Hours
      • Mon: 8:00am - 5:00pm
      • Tue: 8:00am - 5:00pm
      • Wed: 8:00am - 5:00pm
      • Thu: 8:00am - 5:00pm
      • Fri: 8:00am - 5:00pm
    • Directions