“The Pitt” star Noah Wyle got a pleasant surprise on Thursday during a visit to Children’s Hospital Los Angeles when he encountered a longtime fan — who also happens to be a real life doctor inspired to go into medicine by John Carter, the character Wyle played on NBC’s hit drama “ER” for 11 seasons.

While they were talking, the doctor, Brad Goldberg surprised Wyle by asking for his autograph — on his medical board certification.

The moment came as Wyle and “The Pitt” were visiting as part of Children’s Hospital Los Angeles’ annual Make March Matter fundraising campaign.

“I do think, you know, besides the entertainment factor, [“The Pitt”] brings a lot of attention to the work we do here, and the challenges we experience, and, you know, conveying that to the general public and all the issues in healthcare now, so thank you for that,” Goldberg told the cast members.