Can my regular doctor do the audiology test in his clinic?

Depends: Many doctors have the training necessary to do this, but a lot of physicians don't have the equipment because there isn't enough need for it in their practice. I work with a lot of pediatricians, who send kids off for audiology tests often. However, they don't get enough need in their office to justify the expense of purchasing and maintaining the equipment. Best to call your doctor and ask.