Dr William Yang
Allergy & immunology · 2505 St. Laurent Blvd, Ottawa, ON
Registries checked
Official files from Corporations Canada, the Canada Revenue Agency, FINTRAC and the Régie du bâtiment du Québec
| Registry | Result | Record |
|---|---|---|
| Corporations CanadaFederal corporations | No match | No federal corporation record is matched to this listing.Many businesses register only with their province, and most provincial registries aren’t published as open data. File of October 16, 2026. |
| Canada Revenue AgencyRegistered charities | No match | No charity registration is matched to this listing.Most businesses aren’t charities. File of May 28, 2026. |
| FINTRACMoney services businesses | No match | No money services business registration is matched to this listing.Only currency exchange, money transfer and similar services register with FINTRAC. File of October 8, 2026. |
| Régie du bâtiment du QuébecContractor licences, Québec | Not applicable | Québec contractor licences only. |
Sources: Corporations Canada and FINTRAC under the Open Government Licence – Canada; CRA List of charities; RBQ via Données Québec (CC BY 4.0). How we match records · Report an error
Contact
Suggest an edit- Website
- yangmedicine.com ↗
- Phone
- (613) 725-2113
Official records and lookups for Dr William Yang
Official lookups
No federal corporation record is matched to this listing; many businesses register only with their province.
- Ontario Business Registry: search for a business (official site)
- CRA — GST/HST Registry: confirm a GST/HST number on an invoice (official site)
- Corporations Canada: search federal corporations by name (official site)
These links go to official sites. They don’t mean we’ve checked this business.
Reviews and questions about Dr William Yang
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