X0101 EFFECT 33 LIVE 2009-10-23 09:00:00

S-4

0001063561 PROSPECT MEDICAL HOLDINGS INC 333-162241 0001474003 Alta Hollywood Hospitals, Inc. 333-162241-15 0001474021 Prospect Medical Systems, Inc. 333-162241-14 0001474017 Prospect Hospital Advisory Services, Inc. 333-162241-13 0001474012 ProMed Health Services Co 333-162241-12 0001474011 ProMed Health Care Administrators 333-162241-11 0001474020 Prospect Medical Group, Inc. 333-162241-10 0001474019 Prospect Health Source Medical Group, Inc. 333-162241-09 0001474023 Prospect Professional Care Medical Group, Inc. 333-162241-08 0001474022 Prospect NWOC Medical Group, Inc. 333-162241-07 0001474014 StarCare Medical Group, Inc. 333-162241-06 0001474007 Genesis Healthcare of Southern California, Inc., a Medical Group 333-162241-05 0001474008 Pomona Valley Medical Group, Inc. 333-162241-04 0001474015 Upland Medical Group, a Professional Medical Corp 333-162241-03 0001474004 Alta Hospitals System, LLC 333-162241-02 0001474006 Alta Los Angeles Hospitals, Inc. 333-162241-01