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

Ms. Ann Peterson, NP

General Practice Registered Nurse in Medford, MA · enumerated 2012.

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

National Provider Identifier

1104181445

Verified

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Registry record

Entity type Individual (Type 1)

Name Ms. Ann Peterson

Credential NP

Sex Female

Practice address Medford, MA, 02155

Phone (781) 393-8833

Enumeration date Jul 12, 2012

Last updated in NPPES Jul 12, 2012

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

Taxonomy & licenses

163WG0000X General Practice Registered Nurse Nursing Service Providers · License RN86754 (MA) Primary

163WG0000X General Practice Registered Nurse Nursing Service Providers · License 067490 (CT) Secondary

163WG0000X General Practice Registered Nurse Nursing Service Providers · License 046055-21 (NH) Secondary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
067490	Other	CT	STATE LICENCE
RN86754	Other	MA	STATE LICENCE
046055-21	Other	NH	STATE LICENSE

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

Is NPI 1104181445 active?

Yes, as of the latest NPPES snapshot, NPI 1104181445 is active (record last updated 2012-07-12).

How do I verify Ann Peterson's NPI record?

Cross-check NPI 1104181445 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-12.