Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Barbara Waldorf, RN

Psychiatric/Mental Health Registered Nurse in Arlington, MA · enumerated 2007.

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

National Provider Identifier

1699890467

Verified

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Registry record

Entity type Individual (Type 1)

Name Ms. Barbara Waldorf

Credential RN

Sex Female

Practice address 742 Massachusetts Ave, Arlington, MA, 02476

Phone (781) 646-7301

Fax (781) 643-8726

Enumeration date Mar 20, 2007

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

163WP0808X Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License 168463 (MA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier	Type	State	Issuer
1004745	Other	MA	BEACON HEALTH
1303287	Medicaid	MA	-
NP01332	Other	MA	BOSTON MEDICAL
99618201	Other	MA	NETWORK HEALTH
1303287	Other	MA	MBHP
M18633	Other	MA	BCBS
703136	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 Waldorf?

Barbara Waldorf is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Registered Nurse. 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 2007-07-09.