Registering for myNothernLighthealth Revised: 10.19.2018 Page 1 of 4 IMPORTANT: If at any time during your registration process you have questions, please contact our support line, which is available to you 24 hours a day, 7 days a week, 365 days a year. Call 1-877-621-8014. After signing up for myNorthernLighthealth at your provider's office, you will receive an email from NORTHERN LIGHT.