What is your Employer Identification/Tax ID Number? October 02, 2024 19:32 Updated Our Employer Identification Number (EIN, or Tax ID number) is: 13-3433452. Related articles Is Doctors Without Borders a nonprofit organization? How can I access my account online? How do I contact Doctors Without Borders? Can I donate by making qualified charitable distribution (QCD) from my IRA? How do I make a donation to Doctors Without Borders/Médecins Sans Frontières (MSF)?