Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Theresa Dolle Feldhausen, MS
Counselor in Olympia, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366408437
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Registry record
Entity type Individual (Type 1)
Name Mrs. Theresa Dolle Feldhausen
Credential MS
Sex Female
Practice address 406 Lilly Rd Ne, Suite D, Olympia, WA, 98506
Phone (360) 456-5546
Enumeration date Apr 26, 2006
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Theresa Feldhausen?
Theresa Feldhausen is registered in NPPES with the primary taxonomy of Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.