NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Grey Matters Counseling LLC

Mental Health Counselor in Elm Grove, WI · enumerated 2020 · authorized official Mary Durand, Owner.

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

National Provider Identifier

1235751181

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Grey Matters Counseling LLC
Parent organization Grey Matters Counseling LLC
Practice address 15300 Watertown Plank Rd Ste 106, Elm Grove, WI, 53122
Enumeration date May 14, 2020
Last updated in NPPES May 14, 2020

Taxonomy & classification

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Primary

Authorized official

Name Mary Durand
Title Owner

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Grey Matters Counseling LLC?
Grey Matters Counseling LLC is registered in NPPES as a Mental Health Counselor (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-14.