Individual provider · Type 1 NPI

William B. Ewen, MD

Emergency Medicine Physician · Round Rock, TX

NPI number 1538355490 Active

Practice location

300 University Blvd
Round Rock, TX 78665-1032

Call (512) 509-0100 Map

Mailing address

PO Box 844658
Dallas, TX 75284-4658

Other practice locations

  • 5323 Harry Hines Blvd., Mc 8579, Dallas, TX 75390-8579 · (214) 648-3916

Specialties and licenses

TaxonomyCodeLicense
Emergency Medical Services (Emergency Medicine) Physician 207PE0004XN6286 (TX)
Emergency Medicine Physician Primary 207P00000XN6286 (TX)

Emergency Medicine Physician: An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in respo…

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About NPI 1538355490

William B. Ewen, MD's National Provider Identifier is 1538355490, issued on Sep 24, 2007. The primary taxonomy on file is Emergency Medicine Physician (207P00000X), and the practice location is in Round Rock, TX. The record was last updated on Jan 21, 2026.