Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Barbara T Peters, D.O.

Internal Medicine Physician in Concord, MA · enumerated 2006 · practices at Atrius Health Inc. Dba Harvard Vanguard Medical Associates.

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

National Provider Identifier

1609834563

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Registry record

Entity type Individual (Type 1)

Name Barbara T Peters

Credential D.O.

Sex Female

Practice address 330 Baker Ave, Concord, MA, 01742

Phone (978) 287-9350

Fax (978) 287-9421

Enumeration date May 2, 2006

Last updated in NPPES Nov 17, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 77219 (MA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
3109895	Medicaid	MA	-
18119	Other	MA	HARVARD PILGRIM
4324090	Other	MA	AETNA
J13813	Other	MA	BLUE CROSS
6761777-002	Other	MA	CIGNA
0016164	Other	MA	NEIGHBORHOOD HEALTH
760208	Other	MA	TUFTS

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 Barbara Peters?

Barbara Peters is registered in NPPES with the primary taxonomy of Internal Medicine Physician. 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 2020-11-17.