Distinct Healthcare · Insurance Guide

Complete Guide to Insurance Claims
in Singapore

What is a TPA, how to find a Panel doctor, and how to waive your hospital deposit with a Letter of Guarantee — a clear, step-by-step breakdown of outpatient and inpatient claims to help you get reimbursed without the headaches.

TPA explained in plain language Outpatient & inpatient workflows 5 common pitfalls to avoid

What Is a TPA and Why Does It Matter?

TPA stands for Third-Party Administrator — the insurance company's claims processing agent. Understanding its role is the foundation of a smooth claim.

What the TPA does for insurers

Reviews and processes claims, liaising directly with hospitals and clinics on behalf of the insurer
Manages the Panel network (approved doctors and clinics), helping insurers negotiate preferential rates
Reviews and approves Letters of Guarantee (Log) and Pre-authorisation requests before hospitalisation

What the TPA does for patients

Acts as the intermediary between you and the insurer — you deal with the TPA, not the insurer directly
Checks whether your documentation is complete and whether the referral letter meets requirements — flagging issues before a formal rejection
Coordinates claims across multiple policies (e.g., corporate group plan + personal hospitalisation plan) to maximise reimbursement

Important: The TPA does not make the final decision on whether a claim is approved or how much is paid — that remains with the insurer. The TPA's value lies in making the process smoother and reducing the risk of claims being rejected over administrative issues.

Outpatient Claims: 3 Steps (The Most Error-Prone Scenario)

Whether outpatient visits are covered depends on your policy type. How much you recover depends on whether you chose a Panel clinic.

Step 1: Confirm whether your policy covers outpatient visits

Policy Type	Outpatient Coverage	Notes
Corporate Group Medical Insurance	Typically covered	Covers GP visits and specialist consultations (referral letter required for specialists)
Integrated Shield Plan (personal)	Primarily inpatient	Outpatient coverage depends on whether an outpatient rider was included — check your policy
Hospital-only Plan	Not covered	Covers hospitalisation and surgery costs only; all outpatient fees are fully self-pay

Step 2: Choose a Panel clinic or Panel doctor

Panel doctors are approved by the insurer and the TPA, with pre-negotiated rates and higher reimbursement percentages. For example: a non-Panel clinic may be reimbursed at 80%, while a Panel clinic is reimbursed at 95%.

How to find a Panel clinic

Open your insurer's app and use the "Find a Clinic" feature — enable location access to see nearby Panel clinics
Contact your company HR or insurance broker — the Panel network for corporate plans is managed by the TPA, and HR can provide the full list

Additional benefit for Claim-based policies

Claims under S$1,000 at a Panel doctor: no premium increase at renewal
Same claim amount at a non-Panel doctor: the premium may increase by one tier the following year

Step 3: Identify yourself at the clinic and submit complete documentation

At the front desk, state clearly: "I have insurance with [insurer name] — this is my Panel card." The clinic will contact the TPA directly to confirm your coverage, avoiding any need for supplementary submissions later.

Required documentation checklist — missing any item may stall your claim:

Original Final Bill — copies are not accepted; the bill must be marked "Final"
Claim application form — downloadable via your insurer's app; some Panel clinics can submit this online on your behalf
Original referral letter from GP / Polyclinic — mandatory for all specialist consultations; without it, the claim will be rejected outright
Doctor's prescription — note that vitamins, supplements, and non-therapeutic products are not reimbursable, even if prescribed by a doctor

III

Inpatient & Surgical Claims: The Log and Pre-authorisation

Hospitalisation costs are significant. Getting two key approvals in place before admission can eliminate upfront deposits and maximise your reimbursement.

Before admission: 3 actions that determine what you pay

Choose a Panel doctor and Panel hospital.
A non-Panel specialist at a private hospital can charge S$300 or more per consultation, while a Panel doctor is typically 30% or more cheaper — with a higher reimbursement rate on top. For Claim-based policies, choosing a Panel doctor also protects against premium increases at renewal.

Declare your insurance and apply for a Letter of Guarantee (Log) to waive the deposit.
On admission, tell the nurse: "I have insurance with [insurer name] — I am a Singapore citizen / PR" (or "I hold an EP / DP as a foreigner"). The hospital will contact your insurer and the TPA on your behalf.

How much deposit can a Log waive? Up to S$80,000 at public hospitals; up to S$50,000 at private hospitals. Once the TPA approves the Log, it is sent directly to the hospital — you simply sign to confirm. No separate action required from you.

Who can apply for a Log? All holders of a corporate group plan (including foreigners) are eligible. For personal hospitalisation plans, applicants must be Singapore citizens or PRs who have held the policy for at least one year.

For elective procedures, obtain Pre-authorisation before treatment.
Non-emergency surgeries such as endoscopies and cholecystectomies require the treating doctor to submit a Pre-authorisation application. The TPA will assess medical necessity and, upon approval, the deposit is also waived. Foreigners are eligible to apply.

After discharge: Claims process and coordinating multiple policies

Collect the four essential discharge documents:
Discharge summary, Final bill (marked "no outstanding balance"), Operation report (if applicable), CPF payment receipt (if applicable)

Submit your claim.
Online: Upload documents via the insurer's app. The TPA will complete an initial review within 14 business days (complex cases may take longer).
By post: Send to the insurer's designated address; keep the tracking reference.

Holding multiple insurance policies? Let the TPA coordinate — do not split the bill yourself.
If you hold both a corporate group plan and a personal hospitalisation plan, the TPA can manage the sequential claim process to maximise total reimbursement.

Example: Total hospitalisation cost S$10,000. Corporate group plan reimburses 60% (S$6,000); the TPA then coordinates the personal plan to cover the remaining 40% (S$4,000) — potentially achieving full reimbursement. For Claim-based policies: filing the corporate plan first reduces the amount charged against the personal policy, limiting premium increases at renewal.

5 Common Pitfalls (Where Most Claims Go Wrong)

Overlooking any one of these points can result in a rejected claim or unnecessary out-of-pocket costs

1

A referral letter is non-negotiable for specialist visits. When claiming specialist consultations under a corporate group plan, the TPA treats a valid GP or Polyclinic referral letter as a hard eligibility requirement. Without the original, the claim will be rejected 100% of the time — regardless of how obvious the symptoms are.
2

Foreigners cannot obtain a Log under a personal hospitalisation plan. A Log under a personal plan is only available to Singapore citizens or PRs who have held the policy for at least one year. Foreigners with a personal plan must pay the deposit upfront. However, foreigners covered under a corporate group plan are eligible — ask your HR to contact the TPA before admission.
3
These situations are categorically excluded from coverage:
- Pre-existing conditions not disclosed at the time of application (e.g., thyroid nodules, hypertension)
- Medical events occurring during the waiting period — typically 30–60 days from policy inception
- Treatment at facilities not specified in the policy (e.g., policy requires a licensed hospital, but treatment was at a small private clinic)
- Vitamins, nutritional supplements, and non-therapeutic products — the TPA will remove these line items even if they appear on a doctor's prescription
4

For Claim-based policies, your choice of doctor directly affects next year's premium. Under a Claim-based personal hospitalisation plan, both the claim amount and whether you chose a Panel doctor influence your renewal premium. Choosing a Panel doctor for the same treatment can mean the difference between a flat renewal and a one-tier premium increase.
5

Retain all original documents for at least six months. Even after submitting digital copies, keep the originals of all bills, referral letters, and prescriptions for a minimum of six months. The TPA may carry out verification checks at any time; if originals cannot be produced, previously reimbursed amounts may be clawed back.

Key Terms in Plain Language

Insurance documents can be dense — these plain-language definitions cover the terms you will encounter most often

TPA (Third-Party Administrator)

The claims-processing agent engaged by the insurer. Patients submit documents to the TPA for initial review before the insurer makes a final decision.

Panel Doctor / Panel Clinic

A healthcare provider approved by the insurer and TPA under a pre-negotiated pricing arrangement. Claims at Panel providers attract higher reimbursement rates. Searchable via your insurer's app.

Log (Letter of Guarantee)

A written commitment from the insurer to the hospital confirming that covered costs will be paid directly. Allows patients to be admitted without paying a cash deposit upfront.

Pre-authorisation

Advance approval from the TPA confirming that a proposed elective procedure is medically necessary and will be covered. Required for non-emergency surgeries; also waives the hospital deposit on approval.

Claim-based Policy

A policy structure where the premium at renewal is influenced by the policyholder's claims history during the preceding year — including whether Panel or non-Panel providers were used.

Waiting Period

The initial period after policy inception (typically 30–60 days) during which claims are not payable. Any medical event occurring in this window is excluded from coverage.

Three Rules to Remember

Still uncertain? Contact your insurance broker or company HR directly — they will liaise with the TPA and handle the details on your behalf.

Before Every Claim

1
For outpatient specialist visits: always obtain a referral letter from a GP or Polyclinic first. For hospitalisation or surgery: apply for a Log before admission to waive the deposit. Getting these two steps right eliminates most downstream complications.
2
In every scenario, prioritise Panel doctors and Panel clinics — they offer higher reimbursement rates, and for Claim-based policies, they protect against premium increases at renewal.
3
Keep the originals of all bills, referral letters, and prescriptions for at least six months. The TPA may conduct verification checks at any time; documentation you cannot produce may result in a clawback of reimbursed amounts.

Disclaimer & Credits

This article was initially drafted with AI assistance, refined by our editorial team, and finalised following professional review by Distinct Healthcare physicians.

This is original content by Distinct Healthcare, provided for informational purposes only and not intended as insurance or medical advice. Coverage terms vary by policy. For personalised guidance, consult your insurance broker or a qualified physician.

Contact: health_content@distincthealth.com

Produced by: Distinct Healthcare · Health Express Team Editorial: Health Express Editorial Team Medical Review: Distinct Healthcare Physician Team