Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tammy Lynn Dirksen, CO
Orthotist in Fresno, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366621567
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Registry record
Entity type Individual (Type 1)
Name Tammy Lynn Dirksen
Credential CO
Sex Female
Practice address 2039 N Fine Ave, Fresno, CA, 93727
Phone (559) 251-5557
Fax (559) 251-5559
Enumeration date Oct 24, 2007
Last updated in NPPES Oct 24, 2007
Taxonomy & licenses
222Z00000X Orthotist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| XA0165660 | Medicaid | CA | - |
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 Tammy Dirksen practice?
The practice location on file with NPPES is in Fresno, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Tammy Dirksen?
The National Provider Identifier (NPI) for Tammy Dirksen is 1366621567, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-24.