Customer Support and Payment
Berkeley HeartLab customer support hours of operation are Monday - Friday, 5:30 am to 5:30 pm PST. Please dial 800-432-7889, Option 2.
To contact customer support at Quest Diagnostics, please dial 866-MyQUEST (866-697-8378) or go to questdiagnostics.com
Payments to Berkeley HeartLab should be accompanied by a copy of your EOB (Explanation of Benefits) and mailed to:
Berkeley HeartLab, Inc.