Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Grace S Trivers, APRN-BC

Psychiatric/Mental Health Clinical Nurse Specialist in North Chelmsford, MA · enumerated 2005.

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

National Provider Identifier

1306828512

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Registry record

Entity type Individual (Type 1)

Name Grace S Trivers

Credential APRN-BC

Sex Female

Practice address North Chelmsford, MA, 01863

Phone (978) 256-6579

Fax (978) 256-1943

Enumeration date Nov 15, 2005

Last updated in NPPES May 18, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

364SP0808X Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 119209 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
890000446	Other	MA	RAILROAD MEDICARE
758727	Other	MA	TUFTS
4007530Y0MA02	Other	NH	BCBSNH
043476807-08	Other	MA	PACIFICARE
162568	Other	MA	MHN
1851713	Medicaid	MA	-
PN0057	Other	MA	BCBSMA
1008984	Other	MA	CIGNA
0022320	Other	MA	NHP
4339587	Other	MA	AETNA
006475	Other	MA	TRICARE
1388318000	Other	MA	MAGELLAN
83-01340	Other	MA	EVERCARE

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

What specialty is Grace Trivers?

Grace Trivers is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Clinical Nurse Specialist. 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.

Other providers at this practice address

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Susan Charkoudian Clinical Social Worker · N Chelmsford, MA NPI 1740276526 Ronald Winfield Psychiatry Physician · North Chelmsford, MA NPI 1679554927 Robert Dimeo Clinical Social Worker · North Chelmsford, MA NPI 1588645824 Paul Menitoff Psychiatry Physician · N Chelmsford, MA NPI 1578545562 Usha Tripathi Psychiatry Physician · North Chelmsford, MA NPI 1205818010 Richard Folly Clinical Social Worker · North Chelmsford, MA NPI 1518940444 Lucy Grosvenor Clinical Social Worker · North Chelmsford, MA NPI 1083697049 Martha Huff Adult Psychiatric/Mental Health Registered Nurse · North Chelmsford, MA NPI 1730153263

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-18.