Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Carolyn Biddulph, OTR
Occupational Therapist in Allen, TX · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285052621
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Registry record
Entity type Individual (Type 1)
Name Mrs. Carolyn Biddulph
Credential OTR
Sex Female
Practice address 800 N Watters Rd, Suite 150, Allen, TX, 75013
Phone (469) 675-3153
Fax (469) 675-3154
Enumeration date Apr 2, 2014
Last updated in NPPES Apr 2, 2014
Taxonomy & licenses
225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 115945 (TX) Primary
225XP0200X Pediatric Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 115945 (TX) Secondary
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
Where does Carolyn Biddulph practice?
The practice location on file with NPPES is in Allen, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Carolyn Biddulph?
The National Provider Identifier (NPI) for Carolyn Biddulph is 1285052621, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Jennah Critchfield Pediatric Occupational Therapist · Allen, TX NPI 1265882344 Gabriela Amaya Behavior Analyst · Allen, TX NPI 1114568995 Hannah Moorehead Behavior Technician · Allen, TX NPI 1164055059 Madison Wilson Behavior Technician · Allen, TX NPI 1235874272 Laquesha Cancino Behavior Technician · Allen, TX NPI 1770220550
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-02.