Allan Kass

Title: Penthouse Nurse
Author: Jane Converse
Publisher: Signet
Published: April 1974, ©1974
Illustrator: Allan Kass

This is credited by the blog Allan Kass, Illustrator of Book Covers.

Actually, it was a dream assignment—private duty nurse to wealthy Jim Orr in his lavish penthouse. But to Carrie Linden it meant only a chance to work with Ken Delaney, Jim's doctor—a chance to be near the man she secretly loved. Perhaps then their friendship might grow into something more. But Ken treated her as just an old friend and a capable, dedicated nurse. But Dr. Michael Carlisle saw her differently, and Carrie, feeling so lonely, found herself accepting his persistent attentions. Soon she became more and more drawn to the suave and handsome doctor, yet the image of Ken still haunted her daydreams. Was she a romantic fool to think that Ken would ever care for her? Or should she erase him from her life—and her heart...?