Attorney Susan Lask said her client, Hyun Lee, was picking up photos Feb. 7 at a CVS in Egg Harbor City when Lee noticed an employee had identified her as "Ching Chong Lee" on the ticket.
Lee said through her attorney that she complained to CVS customer relations and was allegedly told the worker would be "counseled and trained."
"Store counseling cannot correct intolerable discrimination," Lask said in a written statement, adding they were demanding the worker be fired.
CVS Spokesman Mike DeAngelis said the company does not comment on pending litigation but has a firm non-discrimination policy.
"CVS/pharmacy is committed to treating all of our customers with dignity and respect," he said.
The suit, which Lask said was filed April 16 in federal court in Camden, is seeking $1 million.
Lask planned to hold a news conference to announce the suit on Thursday.