What are the names and phone numbers of some expert urologists or
neurologists who specialize in treating pain in the glans of the
penis?  As distinguished from e.g. pain due to erections that do not
subside.

Specialists in the greater Washington, DC area (including e.g. Johns
Hopkins) are preferred, but if there are renowned experts elsewhere I
would like to know who they are as well.

Pain due to erections which do not subside is known as Priapism, and
is usually treated with localised anti-hypertensives. Pain in or
surrounding the glans of the penis can be caused by several things:

1. Infection (Balanitis) of the glans. 
2. Phimosis of the penis (usually only in uncircumsized individuals). 

www.UrologyHealth.org is a website for the American Urology Society
(AUS) and all uroloogists that are apart of this society are assumed
experts in their field. These are a few well-noted urologists:

Chiledum A. Ahaghotu, M.D.
Howard University Hosp
2041 Georgia Avenue NW Ste 4C02
Washington, DC 20060
202 865-7720

Paul Ray Shin, M.D.
Urologic Surgeons of Washington
2021 K St. NW, Ste 408
Washington, DC 20006
202 223-1024

Jason Douglas Engel, M.D.
Urologic Surgeons of Washington
2021 K St NW, Ste 408
Washington, DC 20006-1003
202 223-1024