Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Christopher Nelson, R.N.

Psychiatric/Mental Health Registered Nurse in Arlington, MA · enumerated 2017.

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

National Provider Identifier

1336680115

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Registry record

Entity type Individual (Type 1)

Name Mr. Christopher Nelson

Credential R.N.

Sex Male

Practice address 406 Massachusetts Ave, Arlington, MA, 02474

Phone (617) 491-2070

Enumeration date Mar 14, 2017

Last updated in NPPES Mar 14, 2017

Taxonomy & licenses

163WP0808X Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License RN2313437 (MA) Primary

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

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 1336680115 active?

Yes, as of the latest NPPES snapshot, NPI 1336680115 is active (record last updated 2017-03-14).

How do I verify Christopher Nelson's NPI record?

Cross-check NPI 1336680115 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-14.