Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Andrew Tierney, DPT

Physical Therapist in Aberdeen, MD · enumerated 2016 · practices at Medstar Medical Group II LLC.

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

National Provider Identifier

1609320654

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Registry record

Entity type Individual (Type 1)

Name Andrew Tierney

Credential DPT

Sex Male

Practice address 998 Hospitality Way Ste 101, Aberdeen, MD, 21001

Phone (410) 273-9776

Enumeration date Aug 8, 2016

Last updated in NPPES Jun 10, 2021

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2016027713 (MO) Secondary

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 27080 (MD) Primary

DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT credential

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 Andrew Tierney?

The National Provider Identifier (NPI) for Andrew Tierney is 1609320654, a Type 1 (individual) record in the CMS NPPES registry.

Where does Andrew Tierney practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-10.