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

Dr. William Stassen, MD

Individual provider Gastroenterology Physician · NPI 1548245079

Dr. William Stassen, MD is a Gastroenterology Physician in Austin, Texas. Licensed in Texas. Registered with an NPI since 2005.

Licensed in
TX
In the registry since
2005
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

8015 Shoal Creek Blvd Ste 118
Austin, TX 78757-8052
Phone: (512) 244-2273
Fax: (512) 671-7883
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G7893 (TX)

Record details

NPI number1548245079
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 7, 2005
Last updated in NPPESJanuary 8, 2013
Mailing addressPo Box 10597, Austin, TX 78766-1597

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