MYLES TONNACLIFF PH.D, LLC
NPI 1235666017
Clinic/Center - Mental Health (Including Community Mental Health Center) in Cedarburg, WI
About Myles Tonnacliff Ph.d, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MYLES TONNACLIFF PH.D, LLC (NPI 1235666017) is a healthcare organization registered as a mental health (including community mental health center) in Cedarburg, Wisconsin and active in the NPI registry since May 2017. The organization lists Myles D Tonnacliff, Licesed Psychologist- Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Myles Tonnacliff Ph.d, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Myles Tonnacliff Ph.D, LLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Myles Tonnacliff Ph.D, LLC's NPI number?
The NPI number for Myles Tonnacliff Ph.D, LLC is 1235666017. It was assigned to this organization in the NPPES registry on May 11, 2017.
Where is Myles Tonnacliff Ph.D, LLC located?
Myles Tonnacliff Ph.D, LLC is located at W62n248 Washington Ave Suite 208, Cedarburg, WI 53012. The listed phone number is (262) 618-2856.
What is Myles Tonnacliff Ph.D, LLC's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.
Is Myles Tonnacliff Ph.D, LLC enrolled in Medicare?
Yes. Myles Tonnacliff Ph.D, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Myles Tonnacliff Ph.D, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Myles Tonnacliff Ph.D, LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Myles Tonnacliff Ph.D, LLC was last updated on May 11, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Myles Tonnacliff Ph.d, Llc · NPI 1235666017
Mental Health (Including Community Mental Health Center) organization in Cedarburg, Wisconsin. Organization record, active in the CMS NPPES registry since May 11, 2017.
## Identity
- **NPI:** 1235666017 (Entity type: Organization)
- **Enumerated:** May 11, 2017
- **Primary specialty:** Clinic/Center - Mental Health (Including Community Mental Health Center) · taxonomy 261QM0801X
- **Organization subpart:** No
- **Authorized official:** Myles Tonnacliff, LICESED PSYCHOLOGIST- OWNER
## Practice location
- **Address:** W62N248 WASHINGTON AVE, SUITE 208, Cedarburg, WI 53012-2768
- **Phone:** (262) 618-2856
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Clinical Psychologist) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 11, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1235666017) · Data from the CMS NPPES public registry.