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Arbor Therapy Solutions

Clinical Social Worker in Ann Arbor, MI · enumerated 2013 · authorized official Natasha Lewis-Grinwis, Member.

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

National Provider Identifier

1841635943

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Registry record

Entity type Organization (Type 2)
Legal business name Arbor Therapy Solutions
Practice address 455 E Eisenhower Pkwy, Suite 30, Ann Arbor, MI, 48108
Phone (734) 678-5029
Fax (734) 272-0574
Enumeration date May 2, 2013
Last updated in NPPES May 2, 2013

Taxonomy & classification

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6801086965 (MI) Primary

Authorized official

Name Natasha Lewis-Grinwis
Title Member
Phone (734) 678-5029

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

What type of organization is Arbor Therapy Solutions?
Arbor Therapy Solutions is registered in NPPES as a Clinical Social Worker (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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-02.