I don't know their insurance policies regarding HMO, but try the Children's Medical Group in Torrance (their offices are next door to Torrance Memorial Hospital). Our doctor is part of this group and it's a wonderful setup there. Dr. Klyman is the lead doctor. Our doctor is Dr. Sergis, but she's out on maternity. The group has all pediatricians, plus specialists in allergy, HDD, etc. They also have after-hours call in to the Pediatric Nurse's desk at Torrance Memorial and Saturday appointments. They also will get your child in same day if they are sick...it may not be your regular doctor, but your child will always see someone that day. We love them.