Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

John C. Williamson, MD

Organization Specialist · NPI 1578514311

John C. Williamson, MD provides Specialist services in Austin, Texas. Registered with an NPI since 2006.

In the registry since
2006

Practice location Address checks out

4007 James Casey St C150
Austin, TX 78745-3369 Not confirmed with CMS for 18 years — call before visiting
Phone: (512) 617-3522
Fax: (512) 443-1062
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X

Record details

NPI number1578514311
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Monica Moore — Billing Manager · (512) 617-3522
Other names Capitol Urology Associates
NPI enumeratedMay 15, 2006
Last updated in NPPESAugust 14, 2008
Mailing address4007 James Casey St, C150, Austin, TX 78745-3369

Other providers in Austin