Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Peter Mattes
Mental Health Counselor in Ames, IA · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366397341
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Registry record
Entity type Individual (Type 1)
Name Peter Mattes
Sex Male
Practice address 4923 Lincoln Way, Ames, IA, 50014
Phone (515) 418-6449
Enumeration date Mar 4, 2026
Last updated in NPPES Mar 4, 2026
Taxonomy & licenses
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 136992 (IA) Primary
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 Peter Mattes?
Peter Mattes is registered in NPPES with the primary taxonomy of Mental Health 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 → Morgan Fielder Mental Health Counselor · Ames, IA NPI 1104544618 Courtney Anderson Mental Health Counselor · Ames, IA NPI 1538944855 Susan Letsch Clinical Social Worker · Ames, IA NPI 1821874074 Brayden Bergum Mental Health Counselor · Ames, IA NPI 1386532653 Megan Whitson Clinical Social Worker · Ames, IA NPI 1881525434
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-04.