Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Cathleen Sickles, DPT
Physical Therapist in San Mateo, CA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1841869237
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Registry record
Entity type Individual (Type 1)
Name Cathleen Sickles
Credential DPT
Sex Female
Practice address 800 S Claremont St Ste 106, San Mateo, CA, 94402
Phone (650) 685-4800
Enumeration date Jun 21, 2021
Last updated in NPPES Jun 21, 2021
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 300364 (CA) Primary
DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession.
About the DPT 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
Where does Cathleen Sickles practice?
The practice location on file with NPPES is in San Mateo, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Cathleen Sickles?
The National Provider Identifier (NPI) for Cathleen Sickles is 1841869237, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Jacqueline Zayac Physical Therapist · San Mateo, CA NPI 1568486991 Christina Pollard Physical Therapist · San Mateo, CA NPI 1013485978 Jesse Tolley Physical Therapist · San Mateo, CA NPI 1770139081 Kimberly Tom Physical Therapist · San Mateo, CA NPI 1679282479 Joseph Livelo Physical Therapist · San Mateo, CA NPI 1700690583
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-21.