How to Log In to Your Quest Diagnostics Appointment Account
Logging in to your Quest Diagnostics account
To access your Quest Diagnostics appointment account, go to questdiagnostics.com and look for the "Sign In" button in the top right corner of the homepage. Click it, then enter the email address or username associated with your account along with your password. If you've never created an account before, you'll need to set one up first by selecting "Create Account" on that same login page.
Once you're signed in, you can view your upcoming appointments, see test results that have been released, and manage your account information. The portal also shows you which Quest location you're scheduled to visit and what time your appointment is set for.
Key Takeaways
- Visit questdiagnostics.com and click "Sign In" in the top right to access your account with your email or username and password.
- New users need to create an account first, which takes a few minutes and requires basic personal information.
- Your account shows upcoming appointments, test results once they're available, and lets you update your contact details.
- If you forget your password, use the "Forgot Password" link on the login page to reset it through your email.
- You can also call Quest customer service at 1-866-QUEST-99 (1-866-787-3899) if you have trouble logging in or accessing your account.
Creating a new Quest Diagnostics account
If you don't have an account yet, click "Create Account" on the Quest login page. You'll be asked to enter your first and last name, date of birth, email address, and a password you create yourself. Make sure your password is something you can remember — Quest requires at least 8 characters and a mix of uppercase and lowercase letters.
After you fill in those details, Quest will send a confirmation email to the address you provided. Open that email and click the confirmation link to complete your account setup. Once confirmed, you can log in and start using the portal right away.
What you can do once you're logged in
Your Quest account dashboard shows all your upcoming appointments with the date, time, and location. You can see which tests you're scheduled for and any special instructions — for example, whether you need to fast before your visit or bring certain documents.
The portal also displays your test results once they've been processed and released by the lab. Results typically appear within 24 to 48 hours of your appointment, though some tests take longer. You can view detailed results, download them as a PDF, and share them with your doctor if needed.
You can also update your contact information, manage insurance details, and check on any outstanding balance you may owe for previous tests.
Resetting a forgotten password
Click "Forgot Password" on the Quest login page. Enter the email address associated with your account, and Quest will send you a password reset link. Check your email (including your spam folder) for a message from Quest Diagnostics.
Click the reset link in that email, and you'll be taken to a page where you can create a new password. Use the same requirements as before — at least 8 characters with a mix of uppercase and lowercase letters. Once you've set your new password, you can log back in with it immediately.
Logging in on mobile or the Quest app
You can access your Quest account through any web browser on your phone or tablet by visiting questdiagnostics.com, or you can download the official Quest Diagnostics mobile app from the Apple App Store or Google Play Store. The app uses the same login credentials as the website.
The mobile app lets you check appointment details, view results, and reschedule appointments on the go. Some users find it faster than the website for quick lookups, though both work equally well.
Troubleshooting common login problems
If you're seeing an error message when you try to log in, first make sure you're using the correct email address or username. Passwords are case-sensitive, so check that your caps lock is off. If you've recently changed your password, wait a few minutes before trying again — the system sometimes needs a moment to update.
If you're still locked out, try clearing your browser's cache and cookies, then attempt to log in again in a fresh browser window. If that doesn't work, use the "Forgot Password" option to reset your password, or call Quest customer service at 1-866-787-3899 and they can help you regain access to your account.
Frequently Asked Questions
Do I need an account to check my appointment time?
You can call Quest at 1-866-787-3899 to confirm your appointment without logging in, but having an account makes it much faster to check details yourself anytime. You can also receive appointment reminders by text or email once you're logged in.
Can I reschedule my appointment through the portal?
Yes, if your location allows it, you can reschedule through your account. Log in, find your appointment, and look for a reschedule option. If you don't see one, call the specific Quest location where you're scheduled or use the customer service number.
How long does it take to create an account?
Account creation takes about 5 minutes. You'll enter your basic information, receive a confirmation email, click the link in that email, and you're done. You can then log in and view your appointments right away.
What if I'm having trouble receiving the confirmation email?
Check your spam or junk folder first — confirmation emails sometimes end up there. If you still don't see it after 10 minutes, try creating the account again with the same email address, or contact Quest customer service for help.
Can someone else use my account to view my results?
Your account is personal and password-protected, so only you should have access. If you want a family member or caregiver to see your results, you'll need to share them manually or contact Quest about their proxy access options.
This guide is general information, not professional advice. Offices and providers set their own rules, so check the details with the one you’re seeing. See our Editorial Policy.