Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. T Grace Steinley, D.C.

Chiropractor in Boston, MA · enumerated 2007.

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

National Provider Identifier

1033266978

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Registry record

Entity type Individual (Type 1)

Name Dr. T Grace Steinley

Credential D.C.

Sex Female

Practice address 15 Court Sq, Suite 840, Boston, MA, 02108

Phone (617) 367-3110

Fax (617) 367-3101

Enumeration date Jan 4, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 3004 (MA) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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 T Grace Steinley?

The National Provider Identifier (NPI) for T Grace Steinley is 1033266978, a Type 1 (individual) record in the CMS NPPES registry.

Where does T Grace Steinley practice?

The practice location on file with NPPES is in Boston, MA. 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 2007-07-08.