Is it possible for a 22 yr old male to grow taller?

No: At 22 years of age your growth plates are fused. You are done growing.

Doubt it: Future growth is dependent on whether the growth centers in your long bones remain open. Most have closed by 18 yo in males. If your family has a history of delayed growth, these may be open and growth possible.An x-ray of your wrist and hand can detect your bone maturity.If the index is consistent with >18, you are done, if 14 you could grow more but this is not realistic.