Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Jennifer Brooke Holdorf, N.D.
Naturopath in Seattle, WA · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720380686
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Registry record
Entity type Individual (Type 1)
Name Dr. Jennifer Brooke Holdorf
Credential N.D.
Sex Female
Practice address 2705 E Madison St, Seattle, WA, 98112
Phone (206) 328-7929
Fax (206) 328-6066
Enumeration date Nov 29, 2010
Last updated in NPPES Jul 21, 2022
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
What specialty is Jennifer Holdorf?
Jennifer Holdorf is registered in NPPES with the primary taxonomy of Naturopath. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.