Coronavirus (COVID-19)

Get Vaccinated! Appointments and walk-ins available

Mary’s Center offers free COVID-19 vaccine appointments to established participants who are 12+ years old at our Petworth and Fort Totten locations in DC, and our Silver Spring and Adelphi locations in Maryland. 

We also offer free walk-in COVID-19 vaccinations at all sites, with testing at some locations as well. Read below for more details.  

If you are a Mary’s Center participant and would like make an appointment online to receive the COVID-19 vaccine, click below.* Your second vaccine appointment will be scheduled during your first vaccine visit. 

You can also call 844-796-2797. After selecting your language preference, press “7”. 

*Please note that when booking your appointment online, you can skip the “search for a provider” question and go directly to choosing a location, date, and time for your appointment. The COVID-19 vaccine is free. When asked about payment, please select “by cash/not applicable”.  Once your appointment is scheduled, you will receive a confirmation email. If you do not receive a confirmation email within 2 business days, please check your spam folder. You will also be able to see your confirmed appointment in your Mary’s Center’s Patient Portal account. If you do not see an available appointment, please come back to check the schedule often. We add additional appointments on a daily basis. 

Free Walk-in COVID-19 Vaccinations: 

Visit any of our locations in DC and Maryland to get vaccinated on a first come, first served basis. No appointment needed. Vaccines are available for anyone 12+ years old. 

  • COVID-19 Vaccine Walk-in Hours:   
    • All locations: Monday-Friday, 9:00am-5:00pm 
    • Petworth only: Saturday, 9:00am-5:00pm  

Special Vaccine and Testing Clinics in Maryland:

Anyone who is 12+ years old and lives in Maryland can visit our Silver Spring location to get vaccinated or tested on a first come, first served basis. No appointment needed.

  • COVID-19 Vaccine and Testing Weekday Clinic Hours:  
    • Every Tuesday from 10:00am–2:00pm 
    • Every Wednesday from 1:00pm–4:00pm 
    • Every Friday from 10:00am–2:00pm 

We are also offering walk-in Saturday vaccine clinics this summer, rotating between our Silver Spring and Adelphi locations. No appointment needed.

  • COVID-19 Vaccine ONLY Saturday Clinic Hours:
    • Silver Spring: 8:00am–11:00am on July 10, July 24, August 7, August 21
    • Adelphi: 8:00am–11:00am on July 17, July 31, August 14, August 28

Free COVID-19 Testing in DC:

Mary’s Center offers COVID-19 testing for free to established participants at our Adams Morgan only. If you are a Mary’s Center participant and would like to get tested for COVID-19, call 844-796-2797 to make an appointment.

You can also check with your local health department:

  • Washington, DC: Click here or call 855-363-0333. Sign up to receive email or text alerts about vaccine availability here.
  • Montgomery County, MD: Click here
  • Prince George’s County, MD: Click here
  • Maryland (mass vaccinations sites), click here or call 855-634-6829
  • Virginia, click here or call 877-829-4682

Click here to find Mary’s Center COVID-19 vaccine & testing events in DC & Maryland

COVID-19 Vaccine Education Sessions:

If you have been scheduled for a vaccine appointment and would like to attend a vaccine education session, click here. The sessions will be hosted by the Community Health Education team and will be held in English and Spanish. You can learn more about the COVID-19 vaccine here.

WATCH: Mary’s Center staff explain why they got vaccinated and how you can trust that the vaccine is safe and effective.




Read our blog: “We Need Your Help to Stop the Spread” for answers to frequently asked questions about our COVID-19 screening process.