Suffix changes

```
'do',
'dds',
'dpm',
'dmd',
```

Also, when there are multiple suffixes without commas it gets wonky. 

Ex.
Fname Lname jr., MD --> it'll read jr. as the last name instead of Lname. 

Fname Lname {suffix1}, {suffix2} --> suffix1 becomes the last name.

Not sure how to fix it since the cases I'm speaking of are using only one comma instead of two.
