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Dr. Theodore Y Sy, MD

Gastroenterology* Age 45
Dr. Theodore Y Sy, MD
4.8 (53 Ratings)

Offers telehealth

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Dr. Theodore Y Sy, MD is a Gastroenterologist in Laguna Hills, CA.
Dr. Theodore Y Sy, MD
4.8 (53 Ratings)
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Dr. Theodore Y Sy, MD

Gastroenterology* Age 45
Laguna Hills, CA
Accepting new patients
21 years of experience

Offers telehealth

Dr. Theodore Y Sy, MD is a Gastroenterologist in Laguna Hills, CA.

About

Dr. Sy graduated from Northwestern University Feinberg School of Medicine. Dr. Theodore Y Sy, MD is a Gastroenterologist in Laguna Hills, CA and has 21 years experience. Dr. Sy currently practices at Practice and are affiliated with MemorialCare Saddleback Medical Center and MemorialCare Orange Coast Medical Center. Dr. Sy has experience treating conditions like Hemorrhoids and Intestinal Diverticulitis among other conditions at varying frequencies. At present, Dr. Sy received an average rating of 4.8/5 from patients and has been reviewed 53 times. Dr. Sy's office accepts new patients and telehealth appointments. Dr. Sy is board certified in Gastroenterology and accepts multiple insurance plans.

Experience Check

Enter a condition or procedure
Hemorrhoids
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Intestinal Diverticulitis
Hemorrhoids
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Intestinal Diverticulitis
Hemorrhoids
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Intestinal Diverticulitis
Anal or Rectal Pain
Chronic Gastritis
Cirrhosis
Colorectal Polyp
Constipation
Crohn's Disease
Diarrhea
  • View other providers who treat Diarrhea
Enteritis
Eosinophilic Esophagitis
Esophageal Motility Disorders
Gas-Bloat Syndrome
Gastroptosis
Hepatitis B
Indigestion
Inflammatory Bowel Disease
Intestinal Ulcer
Irritable Bowel Syndrome
Nausea
  • View other providers who treat Nausea
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Reflux Esophagitis
Ulcerative Colitis
Upper Digestive Tract Cancer
Vitamin_Deficiency
Duodenal Polypectomy
Flexible Sigmoidoscopy
Manometry
Rigid Proctosigmoidoscopy
Alcoholic Cirrhosis
Ascites
  • View other providers who treat Ascites
Biliary Cirrhosis
Celiac Disease
Cholangitis
Chronic Anal Fissure
Diffuse Esophageal Spasm
Diverticulitis
Duodenal Cancer
Duodenitis
Dysentery
Esophageal Achalasia and Cardiospasm
Esophageal Diverticulum
Esophageal Varices
Familial Adenomatous Polyposis
Gallstones
Gastric Ulcer
Gastrointestinal Malabsorption
Gastroparesis
Hemochromatosis
Hiatal Hernia
Ileus
  • View other providers who treat Ileus
Infectious Diarrheal Disease
Liver Damage from Alcohol
Megacolon
Pancreatitis
Pelvic Abscess
Pernicious Anemia
Pouchitis
Primary Biliary Cholangitis
Primary Sclerosing Cholangitis
Rectal Ulcer
Stomal Ulcer
Viral Enteritis
Vitamin B12 Anemia
Vomiting Disorders
Colon Cancer Screening
Colorectal Cancer Screening
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Screening Colonoscopy
Ultrasound
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • United Healthcare
  • Optima Health
  • Health Net
  • MultiPlan PPO
  • Premera Blue Cross Blue Shield PPO
  • Aetna
  • Blue Cross and Blue Shield
    Blue Cross Blue Shield
  • First Health (Coventry Health Care)
  • Cigna
  • HealthyBlue Advantage
    HealthyBlue 2.0
  • Blue Cross Blue Shield of California
  • Medicare
  • Curative EPO
    Curative PPO
    Curative PPO Plus
  • Blue Shield of California
  • Anthem Blue Cross Blue Shield
  • Choice Care PPO
  • Gold (CaliforniaCare HMO/ Small Grp) HMO
    Gold Select (Select PPO/ Small Grp)-CA PPO
    Traditional PPO
    EPO-CA
    UC Resident and Fellows-CA PPO
    UC Care-CA PPO
    Platinum Select (Select PPO/ Small Grp)-CA PPO
    USC Plan (Two Tiered Network)-CA HMO
    Bronze EPO (Prudent Buyer EPO/ Small Grp)-CA
    Select-CA HMO
    Select PPO (Select Network)-CA PPO
    Dignity Health Custom Advantage-CA HMO
    Silver (Prudent Buyer PPO/ Small Grp)-CA PPO
    Silver Select (Select / Small Grp)-CA HMO
    Blue Cross (Prudent Buyer) - Small Group-CA PPO
    Balanced (Prudent Buyer)-CA PPO
    National (BlueCard) PPO
    Gold EPO (Prudent Buyer EPO/ Small Grp)-CA
    Advantage-CA HMO
    Silver Advantage-CA PPO
    MemorialCare Custom-CA PPO
    Vivity-CA HMO
    Gold EPO (Prudent Buyer / Small Grp)-CA PPO
    PERS Select-CA HMO
    Silver (CaliforniaCare HMO/ Small Grp) HMO
    Select Plus-CA HMO
    UC High Option Supplement to Medicare-CA
    National (BlueCard Basic) PPO
    Silver EPO (Prudent Buyer EPO/ Small Grp)-CA
    Blue Cross-CA HMO-POS
    Select (PERS Select Providers)-CA PPO
    UC Medicare with Prescription Drugs-CA PPO
    Tenet Network-CA PPO
    Gold Select (Select / Small Grp)-CA HMO
    Blue Cross (CACare) - Small Group-CA HMO
    Bronze EPO (Prudent Buyer / Small Grp)-CA PPO
    Silver Select (Select PPO/ Small Grp)-CA PPO
    UC Health Savings Plan-CA
    Blue Cross (Prudent Buyer) - Large Group-CA PPO
    Dignity Health Ventura EPO/PPO-CA
    Dignity Health PHC EPO & HDP/HSA-CA
    Advantage-CA PPO
    PERS Choice / PERSCare Providers-CA PPO
    Traditional
    Lumenos Plans-CA PPO
    Bronze Select (Select PPO/ Small Grp)-CA PPO
    Blue Cross (Prudent Buyer) - Individual-CA PPO
    UC Medicare without Prescription Drugs-CA PPO
    Blue Cross (CACare) - Individual-CA HMO
    PERS Traditional-CA HMO
    Gold (Prudent Buyer PPO/ Small Grp)-CA PPO
    Blue Cross (Prudent Buyer) - Student Health-CA PPO
    UC CORE-CA PPO
    Platinum Select (Select / Small Grp)-CA HMO
    Select-CA PPO
    Dignity Health EPO / PPO-CA
    Blue Cross (CACare) - Large Group-CA HMO
    Bronze (Prudent Buyer PPO/ Small Grp)-CA PPO
    Platinum (Prudent Buyer PPO/ Small Grp)-CA PPO
    UCSHIP-CA PPO
    Platinum (CaliforniaCare HMO/ Small Grp) HMO
    Gold Advantage-CA PPO

Locations

  1. 1 MemorialCare Medical Group
    26538 Moulton Pkwy Ste 38E, Laguna Hills, CA 92653
    Icon Directions Right Arrow Directions Phone Icon (949) 448-0656
  2. 2 MemorialCare Medical Foundation
    15 Mareblu Ste 100, Aliso Viejo, CA 92656
    Icon Directions Right Arrow Directions Phone Icon (949) 448-0656
  3. 3 Memorialcare Medical Group-Madero
    23512 Madero, Mission Viejo, CA 92691
    Icon Directions Right Arrow Directions Phone Icon (949) 583-1600
    Monday
    08:00 - 17:00
    Tuesday
    08:00 - 17:00
    Wednesday
    08:00 - 17:00
    Thursday
    08:00 - 17:00
    Friday
    08:00 - 17:00
  4. 4 MemorialCare Medical Group
    18035 Brookhurst St Ste 2100, Fountain Valley, CA 92708
    Icon Directions Right Arrow Directions Phone Icon (657) 241-9090
    Monday
    08:00 - 17:00
    Tuesday
    08:00 - 17:00
    Wednesday
    08:00 - 17:00
    Thursday
    08:00 - 17:00
    Friday
    08:00 - 17:00
    Saturday
    Closed
    Sunday
    Closed
  5. 5 MemorialCare Medical Foundation
    29472 Avenida de las Bandera, Rancho Santa Margarita, CA 92688
    Icon Directions Right Arrow Directions Phone Icon (949) 459-9968
    Monday
    08:00 - 17:00
    Tuesday
    08:00 - 17:00
    Wednesday
    08:00 - 17:00
    Thursday
    08:00 - 17:00
    Friday
    08:00 - 17:00
    Saturday
    Closed
    Sunday
    Closed

Patient Satisfaction

Likelihood to recommend Dr. Sy
4.8
Based on 53 Reviews
5 Stars (50)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (3)

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Patient Reviews
Mar 01, 2024
This is my first visit with Dr. Sy. The staff at his office were friendly. Throughout my visit, I didn’t feel rushed. Dr. Sy was an excellent listener and answered all of my questions thoroughly. His patience and knowledge were exceptional. I would highly recommend him to anyone seeking for a gastroenterologist.
Ed T @OC — Mar 01, 2024
See more reviews on Healthgrades
Photo: Dr. Theodore Y Sy, MD
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Dr. Sy's Office & Staff

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  • Staff friendliness and courteousness
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Experience with Dr. Sy

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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Telehealth Options
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Call now to make an appointment
(949) 448-0656

About Me

Specialties*
Gastroenterology
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • Northwestern University Feinberg School of Medicine
    2003
Medical Education

Board Certifications

Board Certifications
  • Gastroenterology
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Internship

Internship
  • University of California Irvine Medical Center
    2004
Internship
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Sy communicate via email?
3 users said yes.
Yes
(3)
No
(1)
Does Dr. Sy offer telehealth services or virtual visits?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Sy offer an online patient portal?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Sy have free onsite parking?
2 users said yes.
Yes
(2)
No
(0)
Does Dr. Sy offer weekend visits?
1 user said yes.
Yes
(1)
No
(1)
Does Dr. Sy offer evening visits?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Sy specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Sy specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Sy specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Sy specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Sy accept insurance?
No responses yet.
Yes
(0)
No
(0)

Frequently Asked Questions

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 frequently treats the following conditions: Hemorrhoids and Intestinal Diverticulitis. See more on Sharecare.

Dr. Theodore Y Sy, MD is affiliated with MemorialCare Saddleback Medical Center and MemorialCare Orange Coast Medical Center.

Yes, Dr. Theodore Y Sy, MD holds board certification in Gastroenterology.

Hospital Affiliations

  • MemorialCare Saddleback Medical Center

    24451 Health Center Dr, Laguna Hills, CA

  • MemorialCare Orange Coast Medical Center

    18111 Brookhurst St, Fountain Valley, CA