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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.

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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

6th Floor, Endoscopy Unit

1515 Quezon Ave., West Triangle, Quezon City

Wed & Sat · 10:00 AM – 12:00 NN

PhilHealth YAKAP colonoscopy: Wednesdays

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.

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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.

Read the article →

Colon Polyps: A Complete Patient Guide

Adenomas, hyperplastic and serrated polyps: which ones matter, and how screening colonoscopy finds them.

Read the article →

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.

Read the article →

THE GASTROINITIATIVE

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Awareness and research, beyond the clinic

The Gastro Initiative is my platform for colon cancer awareness among Filipinos, and for research into affordable artificial-intelligence tools that help endoscopists find polyps.

APPOINTMENTS

Book on SeriousMD

Call or text 0917 859 2638

Online consultations: Wednesdays, 1:00 – 3:00 PM

CLINICS

Chinese General Hospital · Rm 619 · Mon & Fri

Providence Hospital · 6F Endoscopy Unit · Wed & Sat

Diliman Doctors Hospital · Rm 402 · Tue & Thu

Diliman Doctors Hospital · Rm 8010 · Mon & Fri

Padre Pio Maternity and Medical Hospital · 3F OPD · Tue & Thu

DR. NORBERTO ESTANISLAO IV

Gastroenterology

Fellow, Philippine Society of Gastroenterology

Fellow, Philippine Society of Digestive Endoscopy

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© 2026 The Gastro Initiative · Dr. Norberto Estanislao IV

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