Wei Fang Ko, MD, PhD

Practice: Unio Specialty Care

Specialty: Gastroenterology

Office locations: Castro Valley, Glendora, Hayward

Most recent review: 6 days ago New
5.0 out of 5
14 Ratings
4 Comments

Dr. Wei Fang Ko, M.D., Ph.D., earned his medical degree at Taipei Medical University, completed his internal medicine residency at the University of Minnesota, and completed his gastroenterology fellowship at UCSF. Board-certified by the ABIM in gastroenterology with over 20 years of clinical experience, he offers comprehensive digestive health care. He specializes in advanced endoscopic interventions, colonoscopy, upper GI endoscopy, and complex GI disorders.

5.0 out of 5
14 Ratings
4 Comments

Dr. Wei Fang Ko, M.D., Ph.D., earned his medical degree at Taipei Medical University, completed his internal medicine residency at the University of Minnesota, and completed his gastroenterology fellowship at UCSF. Board-certified by the ABIM in gastroenterology with over 20 years of clinical experience, he offers comprehensive digestive health care. He specializes in advanced endoscopic interventions, colonoscopy, upper GI endoscopy, and complex GI disorders.

The reviews listed below were collected independently of Unio Specialty Care through rater8. Each review represents an authentic and verified patient experience.

Very informative and when I asked my questions, he listened closely and gave me the information I needed to know excellent doctor

Rated 5 out of 5 stars
(6 days ago) Oct-2026

He is very thorough and answers all my questions.

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Very nice.

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Dr. Ko listens and explains things. Very happy to have him as my doctor.

Rated 5 out of 5 stars
(1 month ago) Sep-2026