The Dennis Avenue Health Center offers these adult vaccines: COVID-19, flu and measles, mumps and rubella (MMR) to eligible individuals without insurance, have insurance but does not cover vaccines.  Please call the Immunization Program at 240-777-1050 for an appointment. 
There are also several Community Medical Clinics which offer Flu Vaccines, Immunizations and Travel Vaccinations.  Call prior to visiting a location and to see if an appointment is needed; and to ask about specific needs. 
 All are fee for service (out of pocket): Briggs Chaney Walk in Medical Center, 301. 890.8000; Concentra Urgent Medical Care, 301.869.0700; Passport Health, 301.408.4544; Spring Family Medical Center, 301.562.7764; Park Pediatrics and Travel Clinics, 301. 891.6141; and Travel Advisory and Immunization Clinic, 301.738.6420. 
One may also check with a personal health care provider.