This place varies by location, so some are better than others. I've had to navigate my way through some lousy doctors to find the good ones. It wasn't that difficult, just say you want your next appointment to not be with the MD you didn't like. The North Babylon clinic is well run, friendly (for the most part) and I love my PCP there. Hicksville is pretty good too, but Babylon is much better. I can't speak to any of the others as it's really about who the director is and what the volume of patients is.
The operation of the company as a medical service entity is why I lopped off 2 stars. They don't accept Medicare (no longer, anyway) and I'm not sure whether that's on ACPNY or Medicare. Very likely a fair split of blame there as Medicare has gone to crap under the current leadership in Washinton.
What is particularly bad is the website. If you want to upload a photo, the resolution is constrained to just a few hundred pixels. This sort of thing just makes me scream! In the age of cloud services, we should be able to upload a high definition photo of possible carcinomas and any other medical issue. This is especially true now since most of the visits are virtual due to COVID. There is also no place to post complaints or make suggestions. This is just bad business, never ignore your customers. Much of their clientele is Medicaid, so they tend to ignore their input anyway (on a corporate level.) Appointments with specialists may have a wait of months. I know for a fact they don't pay them well and only keep 1 or 2 per specialty. That being said, I really liked the specialists I did see once I actually got to see them.
In summary, this place really needs to get its act together with that website. Patients are really not able to upload high res images. All they need to do is to limit how much data you can keep for images. It's so easy to do and the actual cost of storage is nothing these days, but even that low cost can easily be managed by making a reasonable limit on image data stored. 1 high 4x5 high res photo is 2 Mega-pixels or 5 MB, this is not much storage space, especially d you're a medical service. High-speed internet is 100 MB/sec for comparison. I uploaded a photo here in this review which was rejected by their website. It's just 3.5MB. I had to shrink it to a 354 kB photo which lacked any detail.