Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Grace Mark, DPT

Physical Therapist in Braintree, MA · enumerated 2021.

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

National Provider Identifier

1427641299

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Registry record

Entity type Individual (Type 1)

Name Grace Mark

Credential DPT

Sex Female

Practice address 501 John Mahar Hwy Ste 200, Braintree, MA, 02184

Phone (781) 384-0500

Fax (781) 848-0501

Enumeration date Feb 12, 2021

Last updated in NPPES Jul 25, 2025

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

Other identifiers

Identifier	Type	State	Issuer
25109	Other	MA	PT LICENSE

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.

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Frequently asked questions

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.

What specialty is Grace Mark?

Grace Mark 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-25.