
GASTROENTEROLOGY · QUEZON CITY, MANILA AND SAN MATEO, RIZAL
Dr. Norberto Estanislao IV
Gastroenterologist with clinics at Chinese General Hospital, Providence Hospital, Diliman Doctors Hospital and Padre Pio Maternity and Medical Hospital. Fellow of the Philippine Society of Gastroenterology and the Philippine Society of Digestive Endoscopy.

Online consultations on Wednesdays, 1:00 – 3:00 PM · Clinic line 0917 859 2638
CLINIC SCHEDULE
Where and when to find me
Book any clinic on SeriousMD, or call or text the clinic line. Please arrive 15 minutes early for your first visit.
Chinese General Hospital
Rm 619
286 Blumentritt St., Sta. Cruz, Manila
Mon & Fri · 10:00 AM – 12:00 NN
Providence Hospital
Diliman Doctors Hospital
Rm 402, Medical Arts Building
251 Commonwealth Ave., Matandang Balara, Quezon City
Tue & Thu · 12:00 NN – 3:00 PM
Diliman Doctors Hospital
Rm 8010, MMAB · Ulcerative Colitis Clinic
251 Commonwealth Ave., Matandang Balara, Quezon City
Mon & Fri · 3:00 – 5:00 PM
Padre Pio Maternity and Medical Hospital
3rd Floor OPD
Gen. Luna Ave., San Mateo, Rizal
Tue & Thu · 4:00 – 6:00 PM
Online consultation
Video consultation via SeriousMD
For follow-ups and questions that don't need an examination
Wednesday · 1:00 – 3:00 PM
HMO patients are welcome at all clinics. Maxicare is not yet accepted at Chinese General Hospital.
AREAS OF PRACTICE
Diseases of the colon, and other digestive conditions
Inflammatory bowel disease
Ulcerative colitis and Crohn's disease are long-term conditions that inflame the bowel. An accurate diagnosis and steady follow-up keep them under control and protect the colon over the years.
Colon polyps
Small growths on the lining of the colon. Most are harmless, but some turn into cancer over many years, which is why finding and removing them matters.
Colon cancer screening
Colon cancer is one of the most preventable cancers when it is caught early. Screening finds polyps and early disease before there are any symptoms.
Also seen at the clinics: reflux and dyspepsia (“hyperacidity”), gallstone-related pain and other digestive complaints.

ABOUT
A gastroenterologist focused on the colon
I am a gastroenterologist practicing in Quezon City, Manila and San Mateo, Rizal, with a focus on diseases of the colon: inflammatory bowel disease, colon polyps and colon cancer screening.
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I am a Fellow of the Philippine Society of Gastroenterology and the Philippine Society of Digestive Endoscopy. Through The Gastro Initiative, I also work on colon cancer awareness in the Philippines and on research into artificial intelligence for endoscopy.
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• Fellow, Philippine Society of Gastroenterology
• Fellow, Philippine Society of Digestive Endoscopy
• Clinics at Chinese General, Providence, Diliman Doctors and Padre Pio hospitals
FROM THE BLOG
Plain-language articles on colon health
Ulcerative Colitis in the Philippines: Diagnosis Challenges
Why ulcerative colitis is being seen more often in the Philippines, and how doctors tell it apart from infectious colitis and gastrointestinal TB.
Colon Polyps: A Complete Patient Guide
Adenomas, hyperplastic and serrated polyps: which ones matter, and how screening colonoscopy finds them.
Taking the Fear Out of Colonoscopy
What happens during a screening colonoscopy, why it's usually painless, and how removing polyps helps prevent colorectal cancer.

