Catherine Bao Ngo , MD

Gastroenterology and Internal Medicine

(949) 586-9386

Saddleback Memorial Digestive Disease Center
24411 Health Center Dr Ste 450
Laguna Hills, CA 92653


“I believe that in medicine, the patient's choice is key to obtaining and maintaining good health. My goal as a doctor is to treat my patients with the utmost compassion and understanding, and to form a plan of care that works best for each individual.” Catherine Ngo, MD is Board-Certified in Internal Medicine and Gastroenterology. In addition to preventative care and diagnosis, advanced diagnostics and therapy, Dr. Ngo has interests in gastrointestinal motility disorders and pancreaticobiliary disease. Dr. Ngo earned her Medical Degree from the Wake Forest University School of Medicine in North Carolina where she graduated with honors and was awarded with memberships into the Alpha Omega Alpha Honor Medical Society and the Gold Humanism Honor Society. She completed her Internship, Residency, and Gastroenterology Fellowship at UC Davis Medical Center in Sacramento, CA. Dr. Ngo is a member of the American College of Gastroenterology and American Society for Gastrointestinal Endoscopy. Her numerous abstracts and articles are published in peer-reviewed medical journals. Dr. Ngo enjoys photography, painting, and cooking. As a native to southern California, she returned to Orange County where she lives with her husband, two children, and maltese poodle.

Gender: Female

Years in Practice: 14 Years

Languages Spoken: Italian ,Spanish , Tagalog and English

Education & Training

Medical School: Wake Forest School Of Medicine

Graduation Date: in 2006

Specialties & Hospital Affiliations

Hospital Affiliations:

  • Saddleback Memorial Medical Center

Specialties: Gastroenterology and Internal Medicine

Health Insurance and Affiliations

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna HMO Deductible Plan CA only
  • Aetna Managed Choice POS Open Access
  • Aetna Savings Plus of CA
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • Blue Shield CA Access Plus HMO
  • Blue Shield CA Bronze Full PPO 4500
  • Blue Shield CA Platinum Access+ HMO 25
  • Blue Shield CA PPO
  • CIGNA LocalPlus
  • CIGNA Open Access Plus
  • First Health PPO
  • Health Net CA HMO Employer Group
  • Health Net CA HMO Whole Care Network
  • Health Net CA Individual and Family PPO
  • Health Net CA PPO
  • Health Net PureCare HSP Individual and Family Plans
  • Health Net PureCare One EPO Individual & Family Plan
  • Humana Choice POS
  • Molina Mrktplace CA
  • Multiplan PPO
  • PHCS PPO Kaiser
  • UHC Choice Plus POS
  • UHC Options PPO
  • UHC SignatureValue Flex1
  • UHC SignatureValue Flex2
  • UHC SignatureValue Flex3
  • UHC SignatureValue Focus
  • UHC West SignatureValue Advantage HMO Value Network
  • UHC West SignatureValue HMO

Ngo's Office Information

Saddleback Memorial Digestive Disease Center
24411 Health Center Dr Ste 450
Laguna Hills, CA 92653
(949) 586-9386

Fax: (949) 958-6086
Accepting New Patients: Yes
Medicare Accepted: Yes
Medicaid Accepted: Yes

Office Hours:

Mon8:00 AM-5:00 PM
Tue8:00 AM-5:00 PM
Wed8:00 AM-5:00 PM
Thu8:00 AM-5:00 PM
Fri8:00 AM-5:00 PM

Doctor Ngo's Other Office Information

Saddleback Medical Group
24221 Calle De La Louisa # 300
Laguna Hills, CA 92653
(949) 334-8270

Fax:(949) 942-8076
Accepting New Patients: Yes
Medicare Accepted:Yes
Medicaid Accepted:No

Office Hours:

Mon9:00 AM-5:00 PM
Tue9:00 AM-5:00 PM
Wed9:00 AM-5:00 PM
Thu9:00 AM-5:00 PM
Fri9:00 AM-5:00 PM