As Dr. Martin van Nostrand, Kramer tries to get hold of Elaine's medical chart to erase the negative comments her doctor has made in "The Package". He also uses the Van Nostrand alias in the episode "The Slicer", posing as a "Juilliard-trained dermatologist" for a cancer screening at George's company, Kruger Industrial Smoothing. Kruger later recognizes him as Dr. Van Nostrand in "The Strike". Kramer uses the name Martin van Nostrand (without the "doctor" prefix) while auditioning for the role of himself on the show "Jerry" in "The Pilot, Part 1". Kramer poses as Professor Peter van Nostrand in "The Nose Job" in order to retrieve a favorite jacket from another man's apartment; Kramer's jacket, to which he attributes at least some of his amorous success, is a minor plot point in other episodes until, in "The Cheever Letters", he trades it to a Cuban embassy official for several boxes of authentic Cuban cigars. Kramer is also occasionally called "the K-Man" ("The Barber", "The Bizarro Jerry", "The Busboy", "The Note", "The Hamptons", "The Scofflaw" and "The Soup Nazi"). A derogatory designation for Kramer has been "hipster doofus", a moniker assigned to him by a woman in a wheelchair he once dated in the episode "The Handicap Spot", and occasionally directed at him by Elaine, as in "The Glasses". The nickname was first used in The Atlantic Monthly review of "Seinfeld". Ken Tucker wrote in a 1992 review in "Entertainment Weekly" that Kramer is "the most cartoonish, least-defined person in "Seinfeld". Kramer is an earnest dope whose long, gangly body always seems to surprise his mind — he’s always running, stumbling, bumping into things; he doesn’t enter Jerry’s apartment so much as he explodes into it." In 1999, "TV Guide" ranked him number 36 on its '50 Greatest TV Characters of All Time' list. The band Kramer's Place made reference to the character Kramer. It is shown that Kramer is subletting his apartment from Paul Buchman, one of the main characters in NBC's "Mad About You". Paul and Kramer have a conversation about Paul giving Kramer the apartment in "Mad About You" episode "The Apartment" (Season 1, Episode 8). Pop-Punk band Ledger make reference to Kramer in the title of the song "Some Days You're Kramer, Some Days You're Costanza."