Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mountainside Physical Therapy Inc

Physical Therapist in Washington, VA · enumerated 2008 · authorized official Anne Williams, President.

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

National Provider Identifier

1588833230

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Registry record

Entity type Organization (Type 2)

Legal business name Mountainside Physical Therapy Inc

Practice address 12625 A Lee Hwy, Washington, VA, 22274

Phone (540) 987-9390

Fax (540) 987-9392

Enumeration date Feb 27, 2008

Last updated in NPPES Feb 27, 2008

Taxonomy & classification

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2305004554 (VA) Primary

Authorized official

Name Anne Williams

Title President

Phone (540) 987-9390

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

Where is Mountainside Physical Therapy Inc located?

The practice location on file with NPPES is in Washington, VA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-02-27. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-27.