Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Myles Tonnacliff Ph.D, LLC

Mental Health Clinic/Center (Including Community Mental Health Center) in Cedarburg, WI · enumerated 2017 · authorized official Myles Tonnacliff, Licesed Psychologist- Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1235666017

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Registry record

Entity type Organization (Type 2)

Legal business name Myles Tonnacliff Ph.D, LLC

Practice address W62n248 Washington Ave, Suite 208, Cedarburg, WI, 53012

Phone (262) 618-2856

Enumeration date May 11, 2017

Last updated in NPPES May 11, 2017

Taxonomy & classification

261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Ambulatory Health Care Facilities · License 2163-57 (WI) Primary

Authorized official

Name Myles Tonnacliff

Title Licesed Psychologist- Owner

Phone (262) 618-2856

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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2017-05-11. Verify at npiregistry.cms.hhs.gov.

Where is Myles Tonnacliff Ph.D, LLC located?

The practice location on file with NPPES is in Cedarburg, WI.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-11.