I think there is a misconception about working with an organizer or organization in general - I will have to get rid of all my things! While it's not ideal (or pleasant) to have overflowing drawers or cabinets, you don't need to get rid of most of your belongings to become or stay organized.
Minimalism is more of a lifestyle: less is more, fewer possessions, and a minimalist aesthetic to name a few. This may not be the lifestyle goal for everyone and I certainly respect those who choose it, but it's not necessary to have an organized home. Organization is having systems in place in which you can maintain order and efficiency, items have a "home" and you can easily find what you need when you need it.
Minimalism is reflected in not only ones' home but the way in which one lives while an organized home may have several sets of china and bedding (for example) but there is a sense of order while reflecting the family's personality and lifestyle. Each aesthetic is a personal and intentional choice and as a professional organizer, I don't judge either way.
That being said, there is a distinct difference between the two. More often than not decluttering is a common starting point for getting organized so we can then sort and categorize. When someone gets to the point where they WANT to get organized there are often excess items that need to be addressed and dealt with. Decluttering does not mean getting rid of all of your belongings, it's just a process of letting go of what's not working any longer.
So... if your goal is to get organized for the New Year and you're nervous about reaching out to an organizer, I hope these distinctions can ease some anxiety. If I'm the lucky recipient of your call, I promise not to ask you to get rid of all of your shoes.