Brief Answer:
Mayo is The Best
Detailed Answer:
Thank you for asking!
  BXO 
Balanitis Xerotica Obliterans AKA Penile lichen 
sclerosis is a very common issue mostly in uncircumcised patients. And yes surgery is a good option. And dont worry it is easy one even under 
local anesthesia can be done.A variety of surgical techniques can be used to treat more severe penile lichen sclerosus (balanitis xerotica obliterans [BXO]). Here are some options.
1- Uncircumcised patients usually benefit from therapeutic 
circumcision. Provide regular follow-up care to observe any changes in involved areas suggestive of malignancy.
2-Foreskin 
preputioplasty combined with intralesional 
triamcinolone might be a tenable alternative as against circumcision to treat BXO.
3- One stage or two stage dorsal onlay buccal mucosal 
urethroplasty for strictures and meatal stenosis present almost in every case of BXO.
4-Full-thickness skin grafts from eyelids to penis, plus split-thickness grafts and buccal mucosal grafts for urethral replacement in chronic BXO have been reported
 So hope you are relieved. It is an easy procedure and yes Mayo clinic is a good option. Some lexington urologists are listed here too in case you change your mind.
Dr. XXXXXXX R. Erickson, MD
Urology
740 S LIMESTONE ST Suite B219, Lexington, KY 40536
 
Dr. XXXXXXX L. Crispen, MD
Urology
800 XXXXXXX St Suite MS283, Lexington, KY 40536
Dr. XXXXXXX Strup, MD
Urology
740 S LIMESTONE ST Suite B219, Lexington, KY 40536
Dr. XXXXXXX D. Adkins, MD
Urology
1401 Harrodsburg Rd Suite C405, Lexington, KY 40504
I hope it helps. Don't forget to close the discussion please.May the odds be ever in your brother's favour.
S Khan