Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Erin Maria Esterly, P.T.

Physical Therapist in Pottstown, PA · enumerated 2014.

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

National Provider Identifier

1396153458

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Registry record

Entity type Individual (Type 1)

Name Mrs. Erin Maria Esterly

Credential P.T.

Sex Female

Practice address 30 Old Schuylkill Rd, Pottstown, PA, 19465

Phone (610) 705-3705

Enumeration date Jul 31, 2014

Last updated in NPPES Jul 31, 2014

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT011256L (PA) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT 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 specialty is Erin Esterly?

Erin Esterly is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-31.