Is a wide excision surgery of a mole usually done in a doctors office just using lidocaine for numbing?

Yes: It certainly can be and often is.

Yes: Yes, generally moles are excised on the office with local anesthesia like Lidocaine but it all depends on how large the mole is and any comorbidities that a patient may have like severe systemic and life threatening illnesses.

Yes, but: Why a wide excision? Melanoma ; sometimes other cancers should have wide excision. A benign mole is removed with conservative excision. Why is the mole to be removed? Has a diagnostic biopsy already been done? Does the dr think it is malignant?