Ascend Rehab Services, Inc. Share: Healthcare Ascend Rehab Services, Inc. Visit Website 29516 Kohoutek Union City, CA 94587 (510) 441-8240 (510) 441-2450 (fax) About Map About Provides occupational and speech therapy for special needs children. What's Nearby? Distance: 5 10 15 20 25 50 mi.