Make a well or sick visit appointment at our Pomona location.
Phone Options
Routine appointments – option 3
Urgent appointments – 8:15 to 9 a.m. – option 3
After 9 a.m. – option 4
Referrals – option 6
Advice or refill requests:
Sandra Hollenberg, MD – option 32132
Carrie E. Knoll, MD – option 32134
Ericka Hong, MD – option 32131
James Warren, MD – option 32130
Megan Yunghans MD – option 32133
Edna Shia, MD – option 32135
Medical records – option 7
Billing/Insurance – option 8
Forms – option 9
909-629-5067
FAX – 909-865-7688
Secure email: extension 32105 James.Hollenberg@choc.org
