Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gretchen Piper Hawley, DPT

Physical Therapist in Brookline, MA · enumerated 2013.

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

National Provider Identifier

1851727663

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Registry record

Entity type Individual (Type 1)

Name Gretchen Piper Hawley

Credential DPT

Sex Female

Practice address 1180 Beacon St, Suite 6c, Brookline, MA, 02446

Phone (617) 730-5337

Enumeration date Sep 25, 2013

Last updated in NPPES Jun 2, 2014

Taxonomy & licenses

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

Where does Gretchen Hawley practice?

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

What is the NPI number for Gretchen Hawley?

The National Provider Identifier (NPI) for Gretchen Hawley is 1851727663, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-02.