Dr Ong Chun Seong

Internal MedicineKuala Lumpur

5.035 reviews20 years of experienceAccepts appointments

About

Combining training in Internal Medicine with a subspecialty focus in Nephrology, Dr. Ong Chun Seong cares for adults across a wide range of medical conditions while bringing particular expertise to complex kidney disease. His practice covers acute kidney injury and failure, kidney dialysis, and kidney stones. This dual specialization, supported by qualifications earned both locally and internationally, allows him to build thorough, advanced treatment plans for patients facing kidney-related disorders, always with a deep commitment to their care.

Specialty

Internal Medicine

Sub-specialties

Nephrology

Languages

MandarinIndonesianMalayEnglish

Procedures & Expertise

Procedure	Focus	Est. cost
Doctor Consultation	Key focus	RM 250
Nephrology Consultation		RM 200
Diabetes Consultation		RM 158
Health Screening		RM 786
Hormone Replacement Therapy (HRT)
Kidney Dialysis
Vaccination		RM 180
Kidney Stones Treatment		RM 1,000

Estimates only. The final cost depends on your condition, the hospital and your doctor, and is confirmed by the hospital before treatment.

Qualifications

✓

MBChB (University of Auckland, New Zealand)

✓

M.Int.Med (University of Malaya, Malaysia)

✓

SCE Nephrology (UK)

✓

AM(Mal)

What patients say

Patients consistently describe Dr Ong Chun Seong as a kind, caring and patient doctor who takes the time to explain medical conditions clearly and thoroughly, making sure they understand their treatment. He is often praised for being meticulous and detailed, and for showing genuine care and responsibility towards those under his care. Many patients express gratitude for the treatment and advice they received, reporting good outcomes and recovery. His friendly and approachable manner is frequently highlighted.

Patient reviews

Scfp L

Dr. Ong Chun Seong is a very excellent doctor.

Aug 2026

hameed 691

Dr Ong CS.. ROBIN & ALL STAFF TQ FOR YOUR FULLY SUPPORT & TAKE OF MY LIFE SINCE I WAS HERE TILL DISCHARGE...TQ SO MUCH

Apr 2026

Ling

Dr. Ong Chun Seong was very patient and explained everything clearly.

Apr 2026

Nurfaizatul Nazira Jamil

Dr Ong Chun Seong- He is really great Doctor. i feel very easy to digest on what he explained.

Feb 2026

Shannon Yuen Yee

Dr Ong Chun Seong is a detailed person and good at explaining on the medical condition.

Feb 2026

Amirul Rasydan

Great Service from your arrival, friendly staff and thumbs up for my Doctor. Dr, Ong Chun Seong for his advices. A hospital that I'll recommended for follow up and others.

Nov 2025

Frequently asked questions about Dr Ong Chun Seong

Dr Ong Chun Seong is a Internal Medicine specialist practising in Kuala Lumpur, Malaysia.

Dr Ong Chun Seong specialises in Internal Medicine, with particular focus on Nephrology.

Dr Ong Chun Seong practises at Pantai Hospital Cheras, Pantai Hospital Ampang.

Dr Ong Chun Seong speaks Mandarin, Indonesian, Malay, English.

Dr Ong Chun Seong holds MBChB (University of Auckland, New Zealand), M.Int.Med (University of Malaya, Malaysia), SCE Nephrology (UK), AM(Mal).

Yes. Dr Ong Chun Seong sees international patients, and MedBay coordinates the appointment, interpreters and any paperwork so your visit is straightforward.

Yes. Send us your existing reports and scans, and we can arrange a consultation with Dr Ong Chun Seong for a second opinion before you decide on treatment.

Tell MedBay about your condition and our team arranges the appointment with Dr Ong Chun Seong directly. The concierge is free, and you always pay the hospital's own rate.