# Ontario Drug Benefit (ODB) pharmacy billing reference

Switch Ontario HNS, carrier ODB. Help desk 1-866-811-9893. Always confirm the numbers on the patient's card.

Canonical HTML version: https://pharmflow.io/payers/odb

## Network switch

**Ontario HNS.** Adjudication network: Other.

## Carrier code

**ODB.** Provincial ODB

## Help desk

**1-866-811-9893.** Carrier help desk for claim rejections and setup.

## Card formats

### Health Card Number

**1234-567-890-AB.** Your Ontario health card number (same as OHIP)

### Group Number

**Group Number.** Not typically required for ODB

## Notes for pharmacy staff

- First payer (provincial). Bill before private insurance. Uses Ontario Health Network System.

## What does the health card number look like?

Your Ontario health card number (same as OHIP)

## What is the Ontario Drug Benefit (ODB) help desk number?

1-866-811-9893.

## Is Ontario Drug Benefit (ODB) billed first?

Yes. Ontario Drug Benefit (ODB) is a first payer: bill it before private plans.