Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
William D. Defoyd, D. C.
Chiropractor in Austin, TX · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326058850
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Registry record
Entity type Individual (Type 1)
Name William D. Defoyd
Credential D. C.
Sex Male
Practice address 4029 S Capital of Texas Hwy, Suite 111, Austin, TX, 78704
Phone (512) 345-5925
Fax (512) 343-7113
Enumeration date Aug 8, 2006
Last updated in NPPES Jul 9, 2007
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify William Defoyd's NPI record?
Cross-check NPI 1326058850 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1326058850 active?
Yes, as of the latest NPPES snapshot, NPI 1326058850 is active (record last updated 2007-07-09).
Other providers at this practice address
Browse all → John Luker General Practice Physician · Austin, TX NPI 1700890308 Aman Quadri Physical Therapist · Austin, TX NPI 1487769618 Neblett Enterprises, Lp Chiropractor · Austin, TX NPI 1619192085 Actual Acupuncture and Chinese Medicine Acupuncturist · Austin, TX NPI 1912216342 Randall Kies DDS General Practice Dentistry · Austin, TX NPI 1861783557 Michael Allen Ciaverelli, DDS, P.A. Dental Clinic/Center · Austin, TX NPI 1619220811
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.