Catherine B. Ngo, MD | Aliso Viejo, CA | Gastroenterologist

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Dr. Catherine Ngo is a gastroenterologist who specializes in diagnosing and treating conditions affecting the digestive system. She earned her medical degree from Wake Forest School of Medicine and brings two decades of clinical experience to her practice. Dr. Ngo is fluent in English, Spanish, and Vietnamese, allowing her to serve diverse patient populations in their preferred language.

Dr. Ngo practices at MemorialCare Saddleback Medical Center in Aliso Viejo, California. She focuses on treating common digestive conditions including hemorrhoids, colon polyps, and diverticular disease. Her expertise includes performing colonoscopies and lower digestive tract procedures to help diagnose and monitor intestinal health. Patients rate Dr. Ngo 3.5 out of 5 stars on average for her care.

Overview based on verified provider data

accepting new patients
3.5

25 Ratings
20 years of experience
32 insurance plans accepted
speaks English, Spanish, Vietnamese
Wake Forest School Of Medicine
17 written reviews
2 specialties
30 areas of expertise
1 hospital affiliation
1 office location
Female

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

Catherine Bao Ngo's Ratings and Reviews

3.5

25 Ratings with 17 written Reviews

Average Wait Time 13 Minutes

How was your appointment with
Catherine Ngo?

Patients’ Perspective

Gave an accurate diagnosis: (11) Did WellNeeds Improvement (5)
Had a good bedside manner: (10) Did WellNeeds Improvement (6)
Spent time with me: (11) Did WellNeeds Improvement (5)
Provided follow-up after the visit: (9) Did WellNeeds Improvement (6)
Flexible scheduling: (12) Did WellNeeds Improvement (5)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

25 ratings & reviews

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Showing 1 to 10 of 17 reviews

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Dr Ngo was very thorough and the staff was patient and curtious

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

March 14th, 2022

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Dr. NGO was very thorough, took her time and was easy to talk to.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Flexible scheduling

Needs Improvement

March 2nd, 2022

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Dr. Ngo has been my GI doctor for 5 years, since we moved here. She is caring, professional, knowledgeable, and willing to go the extra mile to care for my complex health issues. She patiently answers questions, and always returns phone calls and follows up with test results. She partners well with me for my personal and medical needs guide me to make the best decisions for my care. .

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

February 19th, 2022

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The Dr and all the nurses made me feel comfortable when I was nervous.All were very gentle.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

January 21st, 2022

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She has been very patience, very kindly, encouragement to help me.

Did Well

Flexible scheduling

Needs Improvement

November 12th, 2021

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Great customer service from everyone, starting at the front desk.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

August 7th, 2021

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Amazing Zoom appointment with Dr. Gno. She is smart, and a straight shooter. Good new theories and ideas to help me that make perfect sense. Now my forever doc!

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

January 13th, 2021

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I want to thank the staff of the Digestive Care Center at Saddleback in making me feel very comfortable for my first Colonoscopy experience. Dr. Catherine NGO, the ladies at the front desk check in Olivia, Helen my admitting nurse, Donna my PR/recovery nurse and Russell D. my GI technician in the procedure room were absolutely wonderful and accommodating. My recovery went very smooth as I was expecting some pain or cramping but nothing of the sort happen. I want to thank again Dr. Ngo and the staff for being welcoming and professional. I highly recommend Dr. Ngo and her staff to friends and family.

June 10th, 2020

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GREAT GROUP

June 10th, 2020

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Dr. NGO was very thorough and listened to my problem with kindness and attentiveness. Her advice and encouragement was exactly what I needed to feel better about my condition and the way forward. She is wonderful.

April 28th, 2020

Catherine Bao Ngo

26671 Aliso Creek Rd Ste 301Aliso Viejo, CA 92656

Tel: (949) 764-7569


Catherine Bao Ngo, MD	Chimdi Mfebe, APRN	Bhavana Akotia, PA-C	Ashley Anderson, APRN
Gastroenterology	Gastroenterology	Gastroenterology	Gastroenterology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
3.5 (25 Ratings)	0 (0 Ratings)	0 (0 Ratings)	0 (0 Ratings)
20 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English, Spanish, Vietnamese	Speaks English	Speaks English	Speaks English
Aliso Viejo , CA	Little Rock , AR	Tempe , AZ	Sacramento , CA
Med School: Wake Forest School Of Medicine	Med School: Chamberlain University College of Nursing	Med School: Charles R Drew University	Med School: East Tennessee State University - Quillen College of Medicine
Current Profile	View Profile	View Profile	View Profile

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Abdominal Pain
Acid Reflux Disease (Gastroesophageal Reflux / GERD)
Acid Reflux Disease (GERD)
Anemia
Barrett Esophagus
Biliary Atresia
Celiac Disease
Colonoscopy
Colorectal Cancer
Constipation
Crohn's Disease
Diaphragmatic Hernia
Enteritis
Esophagitis
Gallstones (Cholecystolithiasis)
Gastritis
Gastroenterologist
Gastrointestinal Diseases (GI Diseases)
Gastroparesis
Heartburn
Hemorrhoids
Hepatitis C
Intestinal Diseases (Duodenal Diseases)
Intestinal Obstruction
Irritable Bowel Syndrome (IBS)
Jaundice
Malnutrition
Pancreas inflammation (Pancreatitis)
Ulcerative Colitis
Vomiting

Catherine Bao Ngo holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2025.

Education & Training

Medical School

Graduated from Wake Forest School Of Medicine in 2006.

NPI Number

Catherine Bao Ngo's NPI number is 1558531129.

Dennis Ly
Nurse Practitioner
| ANAHEIM, CA
(0)
Christopher Chu
Pediatrics
10 Years Exp | Orange, CA
(0)
Dr. Sam Unsuk Lee, MD
Family Medicine
40 Years Exp | Monterey Park, CA
(0)
Rosa De Lima Solis
Gastroenterology
| Santa Ana, CA
(0)
Dr. Hyder Said
Gastroenterology
6 Years Exp | Irvine, CA
(0)
Nellie Dimapasok Hayin Quitangon
Nurse Practitioner
| Orange, CA
(0)
Dr. Michael Andrew Yu
Internal Medicine
9 Years Exp | Orange, CA
(0)
Dr. Angela Yen Hsu
Gastroenterology
9 Years Exp | Orange, CA
(1)
Dr. Miles Owen Auslander
Gastroenterology
55 Years Exp | Cypress, CA
(0)
Dr. Usman Ghani Rahim
Gastroenterology
14 Years Exp | Hanford, CA
(0)

Does Catherine Ngo accept virtual/telehealth appointments?: Catherine Ngo has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Catherine Ngo speak?: Catherine Ngo speaks English, Spanish, and Vietnamese.
Where is Catherine Ngo's office located?: Catherine Ngo's office is located at 26671 Aliso Creek Rd Ste 301, Aliso Viejo, CA, 92656.
Is Catherine Ngo accepting new patients?: Catherine Ngo is accepting new patients on Vitals. View Catherine Ngo's profile on Vitals to make an appointment.
Does Catherine Ngo accept my insurance?: You can see the insurance plans that Catherine Ngo accepts on their Vitals profile.

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