Try like this :
select t.id,case when tt.StableRecords is null then 0 else tt.StableRecords end
as StableRecords,case when tt.expiredRecords is null then 0 else tt.expiredRecords
end as expiredRecords from towns t left join
(select ph.id, count(case when pr.status='stable' then 1 end) as StableRecords,
count(Case when pr.status='expire' then 1 end) as expiredRecords
from patientsRecords pr inner join
patientsHome ph on ph.serial_number=pr.serial_number
group by ph.id ) as tt
on t.id=tt.id