How can Medifly.Ai help me?

Medifly.Ai assists you through every step of your medical journey — from finding the right doctor to estimating costs, planning your stay, and arranging travel details. Our in-house doctors also explain your treatment options in plain language, while all clinical decisions stay with your treating physician. We make medical trips simpler, smarter, and stress-free.

How do I schedule an appointment or treatment?

You can click the "Book" button on our website to schedule an appointment or treatment with your chosen doctor. Our team will take care of the rest of the process based on your needs.

Is virtual consultation available before traveling?

Absolutely. We offer a free consultation with our in-house doctor before you decide to travel, so you have a clear picture of your condition and treatment plan before making the trip.

Is consultation available in multiple languages?

Yes, consultations are available in multiple languages so you can communicate comfortably and clearly understand your condition and treatment plan.

Dr Koay Beng Siang

Paediatrics

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Dr Koay Beng Siang

Paediatrics specialist · Juvenile arthritis, Autoimmune disorders, Childhood infections

Island Hospital · Penang, Malaysia · ≈2h 20m direct from Jakarta

Speaks Mandarin, Hokkien, Cantonese, Bahasa Melayu, English

Profile verified with the hospital

Asking is free and commits you to nothing, just a WhatsApp chat. A doctor replies in minutes.

First time here? Medifly is a doctor-led service for surgery and complex treatment abroad, an official partner of Island Hospital. Our doctors guide you from first question to home again.

Free for you. Partner hospitals pay usThe same price the hospital charges, not moreA medical team beside you, door to door

About Dr. Koay

Dr. Koay treats Juvenile arthritis, Autoimmune disorders, Childhood infections.

Dr Koay Beng Siang is a paediatrician with expertise in general paediatrics and paediatric rheumatology, providing comprehensive healthcare for infants, children, and adolescents. He manages a broad range of childhood illnesses while also specialising in autoimmune, inflammatory, and rheumatological conditions affecting paediatric patients. With advanced fellowship training in paediatric rheumatology, Dr Koay Beng Siang is experienced in diagnosing and managing juvenile arthritis, autoimmune disorders, connective tissue diseases, and chronic inflammatory conditions in children. His clinical approach focuses on early diagnosis, long-term disease monitoring, personalised treatment planning, and family-centred care aimed at improving long-term health outcomes and quality of life. Dr Koay Beng Siang works closely with multidisciplinary healthcare teams and families to provide holistic paediatric care while supporting healthy childhood growth, development, and chronic disease management. MD (USM) — Doctor of Medicine from Universiti Sains Malaysia Advanced Fellowship in Paediatric Rheumatology (S’pore) — Advanced Fellowship in Paediatric Rheumatology, Singapore

Conditions Treated

Juvenile arthritisAutoimmune disordersChildhood infectionsInflammatory conditionsPaediatric rheumatological disorders

Procedure Focus

Paediatric assessment
Rheumatology evaluation
Chronic disease monitoring
Preventive paediatric care

Credentials

MD (USM) — Doctor of Medicine from Universiti Sains Malaysia

Where Dr. Koay practises.

4.4/5(3,154)

Island Hospital

JCIMSQHACHS

Penang, Malaysia · ≈2h 20m direct from Jakarta

Leading private tertiary hospital in Penang offering advanced specialist care, modern medical technology, and comprehensive healthcare services for local and international patients.

Known for

Patients with complex medical conditions · International medical tourists · Individuals needing comprehensive health screening

Languages

Mandarin · Bahasa Melayu · English

If our doctors recommend Dr. Koay for your case, we arrange the appointment, your travel, and someone beside you at the hospital. You pay Island Hospital's own price, not more.

View Hospital

Paying with insurance?

Island Hospital, where Dr. Koay practises, works with these insurers. Medifly checks your policy and handles the claim for you.

AIA (Smart Panel of Hospitals)AllianzAllianz Worldwide PartnersAmMetLifeAsia Assistance (AA) International Indonesia (Rebrand as Across Asia Assist)Asian Assistance (Thailand) Co. LtdAXAChubb LifeCigna International (Kuala Lumpur)Cigna International (Oversea)Emergency Assistance Japan Co. Ltd (EAJ)Etiqa

Cashless where your policy allows, we arrange direct billingWe check your coverage before you commit to anythingNo insurance? You get the full price up front, no surprises

Frequently Asked Questions

Our medical team reviews your case and recommends the doctor best suited to your condition, needs, and preferences — so you don't have to search on your own.

It starts with one message.

Free and confidential · a doctor reads every message

How Medifly works.

Tell us what’s wrong

Symptoms, history, and what you’ve been told so far.

Our doctors study your case

Which specialist and which hospital give you the best chance.

Our doctors recommend the specialist

By call, video or in person, they explain the recommendation until the decision is clear.

We take it from here

Hospital, flights, travel. Where appropriate, we come with you.

Is Dr. Koay right for your case? Tell us what's wrong. If they're not the right doctor for you, we'll say so, and find who is.

Dr Koay Beng Siang

Paediatrics

Dr Koay Beng Siang

Paediatrics specialist · Juvenile arthritis, Autoimmune disorders, Childhood infections

Island Hospital · Penang, Malaysia · ≈2h 20m direct from Jakarta

Speaks Mandarin, Hokkien, Cantonese, Bahasa Melayu, English

Profile verified with the hospital

Asking is free and commits you to nothing, just a WhatsApp chat. A doctor replies in minutes.

About Dr. Koay

Dr. Koay treats Juvenile arthritis, Autoimmune disorders, Childhood infections.

Where Dr. Koay practises.

4.4/5(3,154)

Island Hospital

JCIMSQHACHS

Penang, Malaysia · ≈2h 20m direct from Jakarta

Leading private tertiary hospital in Penang offering advanced specialist care, modern medical technology, and comprehensive healthcare services for local and international patients.

Known for

Patients with complex medical conditions · International medical tourists · Individuals needing comprehensive health screening

Languages

Mandarin · Bahasa Melayu · English

If our doctors recommend Dr. Koay for your case, we arrange the appointment, your travel, and someone beside you at the hospital. You pay Island Hospital's own price, not more.

View Hospital

Paying with insurance?

Island Hospital, where Dr. Koay practises, works with these insurers. Medifly checks your policy and handles the claim for you.

Cashless where your policy allows, we arrange direct billingWe check your coverage before you commit to anythingNo insurance? You get the full price up front, no surprises

Frequently Asked Questions

Our medical team reviews your case and recommends the doctor best suited to your condition, needs, and preferences — so you don't have to search on your own.

How Medifly works.

Tell us what’s wrong

Symptoms, history, and what you’ve been told so far.

Our doctors study your case

Which specialist and which hospital give you the best chance.

Our doctors recommend the specialist

By call, video or in person, they explain the recommendation until the decision is clear.

We take it from here

Hospital, flights, travel. Where appropriate, we come with you.