modifier

Do I use a 26 modifier when billing 99213 and 92567 together when performed in the physicians office?

re: modifier

To bill an E/M in addition to tympanometry (92567, Tympanometry [impedance testing]), insurers will probably require that the office visit constitute a separately identifiable service from the tympanometry. There is no -26 component.
Many private payers follow Medicare’s policy and require modifier 25 (Significant, separately identifiable E/M service by the same physician on the same day of the procedure or other service) appended to E/M codes to indicate that on the day a procedure or service was performed, the patient’s condition required a significant, separately identifiable E/M service above and beyond other services provided.

re: modifier

No not necessary. Modifier 26 is for the professional component of a service that is split up between the technical and professional such as an X ray or some other radiological test.