Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Tammy Christine Hayes, R.D.H.
Dental Hygienist in Warrenton, OR · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356587471
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Registry record
Entity type Individual (Type 1)
Name Mrs. Tammy Christine Hayes
Credential R.D.H.
Sex Female
Practice address 2185 Se 12th Pl, Warrenton, OR, 97146
Phone (503) 861-6243
Enumeration date Dec 18, 2008
Last updated in NPPES Dec 18, 2008
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 Tammy Hayes practice?
The practice location on file with NPPES is in Warrenton, OR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Tammy Hayes?
The National Provider Identifier (NPI) for Tammy Hayes is 1356587471, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Jeffrey Hook Medical Technologist · Warrenton, OR NPI 1881670644 Scott Sammler Other Technician · Warrenton, OR NPI 1093792749 United States Coast Guard Other Technician · Warrenton, OR NPI 1952389918 Warrenton Uscg Phcy Military/U.S. Coast Guard Pharmacy · Warrenton, OR NPI 1154428902 Cg Group Astoria Medical Clinic Medical Physician Assistant · Warrenton, OR NPI 1013098094 Nicholas Parker Phlebotomy Technician · Warrenton, OR NPI 1578778239 Cynthia Anderson Dental Hygienist · Warrenton, OR NPI 1720295587 Claire Reilly Medical Physician Assistant · Warrenton, OR NPI 1497992499
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-18.