Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor
Cyndy Marking, M.S. CCC/SLP
Speech-Language Pathologist in Woodway, TX · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1588864169
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Registry record
Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
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
Is NPI 1588864169 active?
How do I verify Cyndy Marking's NPI record?
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-20.