Nancy Shepherd

Nancy Shepherd is the sister of Derek and Amelia Shepherd. She lives in Connecticut and is a doctor of obstetrics and gynecology.

Hot Dog Thanksgiving
When Carolyn Shepherd broke her wrist before Thanksgiving, Derek invited the family to his and Addison's home for Thanksgiving dinner. Addison cooked, but Nancy ended up getting salmonella poisoning from the meal. ("Ex-Life")

Visiting Seattle
When Meredith was annoyed that Derek hadn't responded to her telling him she'd broke things off with Finn, she went to Derek's trailer and found him fresh from the shower with a woman on his bed. Meredith assumed Derek was cheating on her, but it was just his sister, Nancy. Meredith left before Derek could explain.

She came to Seattle to check up on him since he'd skipped the last few family holidays. She disliked Meredith and repeatedly called her the slutty intern and, much to Derek's dismay, warmly embraced Mark and Addison.

She continued to hint to Derek to forgive Addison for her one-night stand with Mark. Eventually, Derek broke and told her that they carried on with their relationship for two months after he left. She then accepted this and went home happily, accepting his decision. However before she went, she gave him some advice. Nancy advised him that maybe he needed a little time alone to sort things out, to commit to himself rather than run circles around all the women in his life and Derek subsequently told Meredith he does needed a little time to himself and she agreed. ("Let the Angels Commit")

Noelle Lavatte
As an OB/GYN, Nancy was excited to hear that Addison had a patient with two uteruses. When Noelle went into labor in only one of her uteruses, Nancy observed Addison doing a c-section. ("Let the Angels Commit")

Derek Needing a Nerve
Meredith asked her intern Heather Brooks to call all four of Derek's sisters to ask them if they were wanting to donate a nerve to Derek. Heather said to Meredith that Nancy hung up on her and after she called a second time, Nancy hung up on her again. Heather then said that she didn't think that Nancy was interested in donating her nerve. ("Love Turns You Upside Down")

Romantic
Nancy is presumably married and has children, which would form part of Derek's nine nieces and five nephews. It is also probable that she slept with Mark Sloan, as she made the comment that "sleeping with him was like a rite of passage."

Familial
Nancy is fond of her ex-sister-in-law, Addison. When she found out that Derek and Addison were getting divorced, she tried to convince Derek not to go through with it.

Career
Nancy is an OB/GYN.

While Nancy was in Seattle visiting Derek, she admitted she left one of her pregnant patients in Connecticut, who was 35 weeks pregnant with twins, to see Derek and find out what was going on.

Nancy also wanted to see a special case at the hospital while she was there. Addison had a pregnant patient (Noelle Lavatte) with uterus duplex bicollis (two uteruses) who later went into labor. Nancy scrubbed in and observed Addison and O'Malley deliver one of the two babies.

Notes and Trivia

 * She said Derek's land was nice and Seattle is pretty in daylight.
 * She was offended by Derek saying she was like their mom.

Nancy Shepherd Nancy Shepherd