Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Amethyst Chiropractic, P.C.

Chiropractor in Somerville, MA · enumerated 2006 · authorized official Helena Dehamer-Graut, Dr/Owner.

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

National Provider Identifier

1730248428

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Registry record

Entity type Organization (Type 2)

Legal business name Amethyst Chiropractic, P.C.

Other name <Unavail>

Practice address 259 Elm Street, Suite 300, Somerville, MA, 02144

Phone (617) 591-9200

Fax (617) 591-8100

Enumeration date Dec 8, 2006

Last updated in NPPES Dec 13, 2013

Taxonomy & classification

111N00000X Chiropractor Chiropractic Providers Secondary

111N00000X Chiropractor Chiropractic Providers · License 897 (MA) Primary

Authorized official

Name Helena Dehamer-Graut

Title Dr/Owner

Phone (617) 591-9200

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 is Amethyst Chiropractic, P.C. located?

The practice location on file with NPPES is in Somerville, MA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2013-12-13. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-13.