David Eigenberg David Eigenberg

Sex and the City co-star David Eigenberg will guest-star in an upcoming episode of Private Practice, TVGuide.com has learned exclusively.

The 46-year-old actor, who portrayed Miranda's husband, Steve, on the HBO series, will play Frank, the husband of a patient of Addison's (Kate Walsh), who has an extremely unusual request.

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Eigenberg, who most recently appeared in Justified and the Sex and the City sequel, will appear in Episode 16.

Private Practice returns with new episodes Thursday, Feb. 3 at 10/9c on ABC.