NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Milestone Marriage and Family Therapy Services Professional Corporati

Marriage & Family Therapist in Ontario, CA · enumerated 2020 · authorized official Leslie Miles, Ceo/Owner.

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

National Provider Identifier

1689275810

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Milestone Marriage and Family Therapy Services Professional Corporati
Practice address 3491 Concours Ste 202, Ontario, CA, 91764
Phone (909) 284-4504
Fax (909) 259-1428
Enumeration date Nov 4, 2020
Last updated in NPPES May 2, 2023

Taxonomy & classification

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers Primary

Authorized official

Name Leslie Miles
Title Ceo/Owner
Phone (909) 284-4504

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 is the NPI number for Milestone Marriage and Family Therapy Services Professional Corporati?
The NPI for Milestone Marriage and Family Therapy Services Professional Corporati is 1689275810, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Milestone Marriage and Family Therapy Services Professional Corporati?
NPPES lists Leslie Miles (Ceo/Owner) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-02.