Merrimack Urology Associates P.C.

Merrimack Urology Associates P.C. has provided the Merrimack Valley and the surrounding areas with quality and comprehensive urology care since 1969. We believe in keeping our community healthy, and we’re committed to exceeding the expectations of our patients with the most advanced techniques. Merrimack Urology Associates is a patient-centered adult and pediatric urology practice serving Middlesex County in Massachusetts. We offer compassionate, experienced and excellent service that covers the full range of urological disorders regardless of gender and age.


MUA Welcomes
Dr. Mark Henry!

Mark Henry Headshot.jpg

MUA is proud to announce the arrival of

Mark Henry, M.D. 

Dr. Henry joins us from Emory University Hospital where he completed his residency in Urology. He is accepting new patients. See more about Dr. Henry.


Telemedicine is Live!

If you are unable to come to our office for your appointment, you can still visit your doctor from your computer or smartphone.

Log in to our Portal using Google Chrome from your desktop, or download the Healow app to your smartphone to get started!

Visit your doctor from anywhere in the world!


Forms to Download

Prepare for your visit by downloading these forms and filling them out before your arrival.
This will make your check in process easier when you arrive.


Urology Services Provided

Urologists provide medical and surgical treatment for all conditions affecting the male and female urinary tract, and the male reproductive system. We are able to provide the necessary care, whether it is office based medical treatment, or complex surgical management, at the highest level.

We are affiliated with Lowell General Hospital. Learn more about Lowell General in the link below.

Advanced Robotics and Laparoscopic Surgery

Our experienced doctors perform minimally invasive robotic and laparoscopic surgery for prostate cancer, reconstructive procedures for the kidney and bladder, as well as many others, with smaller scars and shorter hospital stays. Lowell General has been designated as a Center of Excellence in Robotic Surgery by the SRC.

MR Fusion Guided Prostate Biopsy

We provide our patients with the latest advances in image guided prostate biopsy. With the use of 3T MRI technology, combined with the Artemis system for fusion guidance, a prostate lesion can be more accurately assessed for early cancer detection.

In office PSA Testing

Our professional team is able to obtain a blood sample upon your arrival, and provide you with a prompt PSA result at the time of your visit. This service is key in detecting and monitoring prostate cancer.


Essential in the management of bladder cancer, we provide office based cystoscopy for prompt diagnosis.


The choice of vasectomy for permanent male birth control can be scheduled and performed as an office procedure.


Labarotory services in house provide prompt results at the time of your visit to guide your care.

Incontinence relief

Evaluation and management of urinary incontinence is available with urodynamics testing, pessary fittings, and surgical options when necessary.

Bladder scanning and flow rate

Voiding dysfunction can be quickly assessed with our in office non-invasive bladder scanners and flowmeters.


Contact Us

31 Village Square
Chelmsford, MA 01824

Phone: (978) 256-9507

Fax: (978) 256-6955