Please contact our office to schedule an appointment at 978.459.2152 and choose option 1. Merrimack Valley Internal Medicine Associates is proud to be affiliated with Lowell General Hospital. Our patients can seek hospital services at both the Main Campus and the Saints Campus. Same-day sick visit appointments are available.Our Providers‧Services/Procedures‧Patient Resources/FAQs‧Prescriptions‧Referrals‧Contact Us.