Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Allison Marie Williams, ND
Naturopath in Tempe, AZ · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851801021
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Registry record
Entity type Individual (Type 1)
Name Dr. Allison Marie Williams
Credential ND
Sex Female
Practice address 2164 E Broadway Rd, Tempe, AZ, 85282
Phone (480) 970-0000
Fax (480) 970-0003
Enumeration date Oct 2, 2017
Last updated in NPPES Oct 2, 2017
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 17-1654 | Other | AZ | ARIZONA NATUROPATHIC MEDICAL BOARD |
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 Allison Williams practice?
The practice location on file with NPPES is in Tempe, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Allison Williams?
The National Provider Identifier (NPI) for Allison Williams is 1851801021, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Patricia Gaines Naturopath · Tempe, AZ NPI 1912126327 Leonard Days Addiction (Substance Use Disorder) Counselor · Tempe, AZ NPI 1073758801 Jordan Kopcio Naturopath · Tempe, AZ NPI 1942531405 Katie Stage Naturopath · Tempe, AZ NPI 1194034504 Nicole Cain Naturopath · Tempe, AZ NPI 1730462565 Daniel Warren Naturopath · Tempe, AZ NPI 1366718736 Amanda Alexander Naturopath · Tempe, AZ NPI 1255684494 Jaclyn Bain Naturopath · Tempe, AZ NPI 1407283492
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-10-02.