Merrimack Valley Cardiology
Cardiology • Lowell, MA
About
Summary: Merrimack Valley Cardiology is a private cardiovascular care practice based in Chelmsford, MA, with four offices in the area. It provides comprehensive heart services including diagnosis, preventive care, and treatment for conditions such as coronary artery disease, heart failure, arrhythmias, valve and congenital heart disease, hypertension, peripheral vascular disease, and aortic disease/aneurysms. They offer in-office diagnostic testing and pacemaker/defibrillator management. The team operates with 7 employees and generated about $21.3 million in annual revenue. Key contact numbers and multiple nearby affiliations (e.g., Tufts Medicine links) are listed. There is no explicit Lowell, MA location mentioned.
Clinic Type
Cardiology (multi-location group)
Address
14 Research Place North Chelmsford, MA 01863; 33 Bartlett Street, Suite 503 Lowell, MA 01852
Phone
978-256-6607
kimberly.calderon-munoz@tuftsmedicine.org
Opening Hours
OFFICE HOURS Monday – Friday 8:00am – 5:00pm
Website
Emergency Care
If you have a true medical emergency, call 9-1-1.
Services Offered
—
Team
Insurance & Payment
—
Languages Spoken
—
FAQs
For non-urgent medical matters, please call us at 978-256-6607.
For non-urgent medical matters, please call 978-256-6607.
What is the emergency number?
If you have a true medical emergency, call 9-1-1.
How can I sign up for the myTuftsMed/Patient Portal?
Make appointments and refill prescriptions online via our Patient Portal. Patients can enroll by contacting the Chelmsford Office.
Who should I contact for feedback?
Kimberly Calderon-Munoz, Practice Supervisor, at (978) 256-6607 or Kimberly.Calderon-Munoz@tuftsmedicine.org.
Photos
What Patients Say
Overall sentiment across review platforms: positive
- Birdeye: 3.7 out of 5 stars (36 reviews)
- Healthgrades: 5.0 out of 5 stars (1 review (for Dr. Nathan Riddell))
Patients praise
- Competent and life-saving care
- Professional and polite staff
- Clear communication from providers
- Clean and organized facilities
- Efficient appointment scheduling
Common complaints
- Specific negative complaints are not prominent in available public summaries, though overall ratings suggest some room for improvement across platforms.
"Dr. Ali put a stent in my coronary artery... He saved my life! I see Dr. Cullingford on a 6 month basis for routine checkups. He is amazing! I would recommend Merrimack Valley Cardiology Associates, and anyone on their staff, in a heartbeat....no pun intended."
— Birdeye Patient Review"Extremely clean. Easy access and Covid safe. The staff is polite, professional, and very helpful. The schedule was right on."
— Yelp Patient ReviewSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Haverhill Health Dept. Plans Cholesterol Workshop - WHAVWHAV — Jun 23, 2026
- Surgery Center of the Merrimack Valley Earns National Recognition for Patient Experience Excellence — Feb 19, 2026
- UMass Memorial Adds Hopedale Cardiology to Its Network - LevinPro Healthcare M&A – The latest healthcare M&A news — May 1, 2026
- New Cardiac Monitoring Program Now Available for Patients at Mercy Medical Center | Trinity Health Of New England — Nov 12, 2025
- James Barnard, MD, Joins UMass Memorial Health as Chief of Cardiac Surgery | UMass Memorial Health — Oct 24, 2025
Information sourced from the clinic's website as of July 11, 2026.
More cardiology clinics in Lowell
Comparing your options?
See other cardiology clinics in Lowell, or search the full directory by insurance, ratings, and more.