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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

WILLIAM D DEFOYD DC PLLC
NPI 1962325662
Chiropractor - Independent Medical Examiner in Austin, TX

Active since July 31, 2026
PERFORMANCE THERAPY GROUP, 5100 W US HWY 290 SERVICE RD STE 100, AUSTIN, TX 78735(512) 751-5959(737) 383-2699 Get Directions Write a Review

NPPES record added: July 31, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William D Defoyd Dc Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM D DEFOYD DC PLLC (NPI 1962325662) is a healthcare organization registered as an independent medical examiner in Austin, Texas and active in the NPI registry since July 2026. The organization lists William David Defoyd, Managing Member, as its authorized official.

NPPES Registry Identity

NPI1962325662
Entity TypeOrganization
Primary Taxonomy111NI0013X
Legal Business NameWILLIAM D DEFOYD DC PLLC
Location AddressPERFORMANCE THERAPY GROUP, 5100 W US HWY 290 SERVICE RD STE 100Austin, TX 78735
Mailing AddressNorthwest Registered Agent Llc, 5900 Balconies Dr. Suite 100Austin, TX 78731 · (512) 751-5959 · Fax (737) 383-2699
Phone(512) 751-5959
Fax(737) 383-2699
Organization SubpartNo
Authorized OfficialWilliam David DefoydManaging Member · (512) 751-5959
Enumeration DateJuly 31, 2026
NPPES CertifiedJuly 18, 2026
✔ NPI 1962325662 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractor · Independent Medical ExaminerChiropractic Providers
Taxonomy Code111NI0013X
Definition
A chiropractor and special evaluator not involved with the medical care of the individual examinee that impartially evaluates the care being provided by other practitioners to clarify clinical, disability, liability or other case issues.
PERFORMANCE THERAPY GROUP, Austin, TX 78735
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William D Defoyd Dc PLLC's NPI number?

The NPI number for William D Defoyd Dc PLLC is 1962325662. It was assigned to this organization in the NPPES registry on July 31, 2026.

Where is William D Defoyd Dc PLLC located?

William D Defoyd Dc PLLC is located at Performance Therapy Group 5100 W Us Hwy 290 Service Rd Ste 100, Austin, TX 78735. The listed phone number is (512) 751-5959.

What is William D Defoyd Dc PLLC's specialty?

The primary specialty registered for this NPI is Chiropractor, specializing in Independent Medical Examiner, with taxonomy code 111NI0013X.

When was this NPI record last updated?

The NPPES record for William D Defoyd Dc PLLC was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.