Progressive Diagnostics | Trusted Testing. Unmatched Service.
Positivity Rates | Connecticut: 4.49% | Progressive Diagnostics 6.67%

Welcome to Progressive Diagnostics.

Being “progressive” means advancing new ideas to serve a cause.

Our cause is you and your wellbeing. At Progressive Diagnostics, nothing is more important than the health and well-being of the people we serve – nothing.

Progressive Diagnostics understands that every sample we process is more than data – it’s a person.

Whether you are a patient, healthcare professional, or payor, Progressive Diagnostics is here to help with convenient testing locations, unmatched turn-around times, and the highest quality reports supported by a team of laboratory and data scientists available to answer your questions.

How can we help you today?

Schedule a COVID-19, Flu A+B or RSV Test

Learn more
about our other
testing services

I’m a healthcare provider and want to learn more

Telehealth appointments are available

Testing Centers

Walk-ins Welcome


9am-1pm (Mon-Fri)
Saint John Catholic Church
(Back Entrance)
1986 Post Road
Darien, CT 06820


8am-4pm (Mon-Fri)
The Mansion at St. Philips Church
1 Father Conlon Place
Norwalk, CT 06851


8am-4pm (Mon-Fri)
Progressive Diagnostics Testing Center
2 Trap Falls Rd, Suite 105
Shelton, CT 06484


2pm-6pm (Mon-Fri)
10am-2pm (Sat-Sun)
St. Mary’s (Parish Office, Back Entrance)
566 Elm Street
Stamford, CT 06902


8am-4pm (Mon-Fri)
8am – 12pm (Sat)
Our Lady of Fatima
229 Danbury Road
Wilton, CT 06897

Telehealth care appointments are available

We recognize your time is valuable.

In response to the increased demand for virtual healthcare, we have partnered with Virtual Walk-in Center to provide quality, convenient care.


*Virtual Walk-in Center is a third-party service, provided by In-House Care LLC, and is not affiliated with Progressive Diagnostics in any way.

We are here to help

If you have any questions about scheduling, which test is best for you, or about your test results, contact our customer care team. Simply call 888.503.8803 or email [email protected] to reach a Progressive Diagnostics customer care representative.