If the Dr wants to bill the claim out and have it processed in network, then all of his/her info goes on claim, his/her NPI in 24J and 33A, his/her EIN in 25, His/her billing info in 33, and the clinic address & NPI in 32. The EIN in 25 must match the billing info in box 33. But the payment will go to the physician, not the clinic. If he is employed by the clinic and the billing is supposed to go out under the clinic, then his/her Individual NPI goes in 24J and the clinics EIN goes in 25, the clinics info & NPI go in 32 & 33.
Michele