Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander Stone Robertson

Addiction (Substance Use Disorder) Counselor in Ann Arbor, MI · enumerated 2024 · practices at Ann Arbor Treatment Services, LLC.

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

National Provider Identifier

1508608357

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Registry record

Entity type Individual (Type 1)

Name Alexander Stone Robertson

Sex Male

Practice address 4673 Washtenaw Ave, Ann Arbor, MI, 48108

Phone (734) 547-5009

Fax (734) 215-1231

Enumeration date Jun 12, 2024

Last updated in NPPES Jun 12, 2024

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers 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.

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Frequently asked questions

Where does Alexander Robertson practice?

The practice location on file with NPPES is in Ann Arbor, MI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Alexander Robertson?

The National Provider Identifier (NPI) for Alexander Robertson is 1508608357, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-12.