Service Contact: ch-tr.generalmedicine@nhs.net Address: Croydon University Hospital 530 London Road, Croydon, CR7 7YE Reception phone number: 020 8401 3976 How to refer How to refer All GP referrals should be made via eRS. Please see this link for a full description and referral information. Refer via e-Referrals. More information about e-Referrals is available here.