Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jennifer Kathryn Spengler
Counselor in Petaluma, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578698171
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Registry record
Entity type Individual (Type 1)
Name Jennifer Kathryn Spengler
Sex Female
Practice address 1244 Santa Ines Way, Petaluma, CA, 94954
Phone (415) 395-6963
Enumeration date Feb 22, 2007
Last updated in NPPES Jul 8, 2007
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
Where does Jennifer Spengler practice?
The practice location on file with NPPES is in Petaluma, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jennifer Spengler?
The National Provider Identifier (NPI) for Jennifer Spengler is 1578698171, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.