Filter a measure on count greater than 1

[Anonymous]

I have a measure which counts the number of appointments a member has made, by counting the number of instances of a unique Appointment ID against a single Customer ID. 

However, I want to only see values greater than 1 so I tried to add a Filter however because the measure is counting text values (Appointment ID) it doesn't like the Filter. 

Any ideas?

Members with an Appointment = 
CALCULATE(
	DISTINCTCOUNT('Appointments'[Appointment ID]),
	ALLSELECTED('Cases'[CustomerID])
)

[v-chuncz-msft · Accepted solution]

@Anonymous ,

You may take a look at the following post.

https://community.powerbi.com/t5/Desktop/DAX-to-count-rows-with-same-value-for-Column-A-for-a-value-...