Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Allyson Pierce, D.C.
Chiropractor in Portland, OR · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427423599
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Registry record
Entity type Individual (Type 1)
Name Allyson Pierce
Credential D.C.
Sex Female
Practice address 5440 Ne 19th Ave #B, Portland, OR, 97211
Phone (256) 609-8575
Enumeration date Dec 1, 2015
Last updated in NPPES Jun 30, 2016
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
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 Allyson Pierce?
Allyson Pierce is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-30.