Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ati Holdings LLC

Physical Therapist in Germantown, MD · enumerated 2023 · authorized official Irma Contreras, Manager of Credentialing.

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

National Provider Identifier

1609559707

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Registry record

Entity type Organization (Type 2)

Legal business name Ati Holdings LLC

Practice address 21030h Frederick Rd Ste 1038, Germantown, MD, 20876

Phone (240) 243-0048

Fax (240) 738-6659

Enumeration date Aug 8, 2023

Last updated in NPPES Aug 8, 2023

Taxonomy & classification

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

Authorized official

Name Irma Contreras

Title Manager of Credentialing

Phone (630) 296-2222

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2023-08-08. Verify at npiregistry.cms.hhs.gov.

Where is Ati Holdings LLC located?

The practice location on file with NPPES is in Germantown, MD.

Providers at this address

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Alexander Kern Physical Therapist · Germantown, MD NPI 1306458922 Brittany Levine Physical Therapist · Germantown, MD NPI 1023834454

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-08.