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Doctor Sun is a doctor and facial reconstruction surgeon who resides in Diamond City in the year 2287. Before the completion of The Disappearing Act, Doctor Sun can be found in the Diamond City market.


Sun is a very accomplished doctor who provides medical treatment such as purging radiation, restoring health, and addiction rehabilitation. He has been working as a doctor with Doc Crocker for a decade,[1] but doesn't consider him a very competent doctor.[2] Sun also sells medical supplies and can provide facial reconstruction surgery in place of Doc Crocker for 100 caps, but considers it to not be real medicine.[3] He lives directly next to his business.

Interactions with the player character

Interactions overview

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This character is essential. Essential characters cannot be killed.
FO76 ui icon quest.png
This character is involved in quests.
FO76 vaultboy firstaid.png
This character is a doctor.
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This character is a merchant. Sells: aid

Effects of player's actions

Other interactions

  • If the player character has Curie as a companion, she may approach him and ask which university he graduated from. Doctor Sun will then laugh at her and ask if she is serious.
  • He can be used to save Danny Sullivan during the quest In Sheep's Clothing.



Doctor Sun appears only in Fallout 4.


  • PCPC Playstation 4Playstation 4 Xbox OneXbox One Sometimes after completing The Disappearing Act his dialogue choices do not change, making facial reconstruction surgery impossible.[verified]
  • PCPC Playstation 4Playstation 4 After completing The Disappearing Act and meeting Doctor Sun in the cellar, one can request facial reconstruction surgery but they will not be able to sit in the surgery chair. Sun does not receive payment for the first conversation. Talking to him again and paying him will make the chair usable.[verified]


  1. Doctor Sun: "{you pronounce your name Doctor SOON (rhymes with moon), but everyone else pronounces it like Doctor SUHN (rhymes with fun), and it annoys you} And it's Doctor Sun! We've been working together for a decade. Get my damn name right!"
    (Doctor Sun's dialogue)
  2. Generic NPC: "Doc Crocker referred me to you. He said you'd be handling the "post-op procedures" whatever that means?"
    Doctor Sun: "If you mean I'm going to be cleaning up all his lazy stitch-work and patching infections due to careless incisions, then yes."
    (Doctor Sun's dialogue)
  3. Doctor Sun: "{player asks what facial reconstruction is. you look down on the practice as not real medicine} *sigh* It's Doc Crocker's specialty. If you're interested, talk to him about it. Just head through the door with our logo on it."
    (Doctor Sun's dialogue)