Clinic Hours & Closures


Clinic Hours

Hours are generally 8:00 am to 5:00 pm and we are closed for lunch from 12:00 pm to 1:00 pm daily. Each clinic has varying days of operation and allergy shot hours, so please speak to the specific clinic staff for exact hours at that location.

In the event of inclement weather, please check our blog for clinic closures and updates.

In general, urgent and sick visits can be scheduled the same day.

Holiday Closures

In observance of several holidays, Colorado Allergy & Asthma Centers® will be closed the following days (*please confirm with specific clinic on holiday hours):

HolidayDates Closed
Memorial DayMay 24 – 26, 2025
Independence DayJuly 4, 2025
(Littleton/Southwest office closed 7/3/2025)
Labor DayAugust 30 – September 1, 2025
ThanksgivingNovember 27 – 29, 2025
Christmas*December 25, 2025
New Year’s*January 1, 2026