<< HMOs suck. Stay away from them. If you have the option, always go with the PPO. >>
Some people in this forum are badly misinformed and that's unfortunate. Let me explain a couple very special differences to you.
First of all, HMO plans require you to choose a PCP or Primary Care Physician. There is generally a very very large list, especially if you're in a metroplex, of doctors you can go to. Most people *I* know only go to one doctor anyhow, so having to specify one is really not a problem for 95% of people.
Secondly, HMO plans cost about 1/3 out of your paycheck what a PPO will, especially if you're single. If you have a family, it's true that more often than not a PPO will provide you with access to specialists more readily than an HMO plan but for single people who do NOT have major health issues, then HMO is the ONLY way to go.
Think about it this way. HMO plans are generally in the $20/month range for a single person, sometimes less. PPO plans can cost upwards of $60/month for a single person. Most insurance plans will allow you emergency hospital visits at a $50 copay (sometimes $75) with both a PPO AND an HMO plan.
The only REAL difference is with a PPO you can go to almost ANY doctor, specialists included. If your doctor you've been going to for some time is in the HMO network (more than likely if he/she's a pretty good doctor, he/she is) and you don't have major health issues, WHY would you pay more for a PPO plan?
Hospital maximums are also generally the same with PPO and HMO plans (deductible wise).
Prescription copays are generally lower with HMO plans (sometimes they are the same) and office visits with ANY HMO plan are generally $10. With a PPO a lot of times they only cover 80% on office visits and prescription drugs. Imagine having a doctor visit that costs you $200, and having to pay $40 instead of $10.
There are a lot of things to consider about who you are, if you have a family or children or not, and so on. Also your current health state will help determine whether to go with a PPO or an HMO but saying that the PPO is always better, is a very poor statement.
Just to let it be known, I am not saying HMO's are superior either, just stating in many cases there are advantages.
dm