Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

John Charles Williamson, MD

Individual provider Urology Physician · NPI 1073566709

John Charles Williamson, MD is an Urology Physician in Austin, Texas. Licensed in Texas. Registered with an NPI since 2006.

Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4007 James Casey St C150
Austin, TX 78745-3369
Phone: (512) 443-5988
Fax: (512) 443-5055
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Urology Physician (primary) Taxonomy 208800000X · Licence E6690 (TX)

Record details

NPI number1073566709
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESJuly 31, 2013
Mailing address1020 W 34th St, Austin, TX 78705-2009

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