NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Jane Katherine O'Neill, R.D.

Registered Dietitian in Montville, NJ · enumerated 2010.

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

National Provider Identifier

1255650669

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Jane Katherine O'Neill
Credential R.D.
Sex Female
Practice address 390 Main Road, Montville, NJ, 07045
Fax (973) 316-5790
Enumeration date May 25, 2010
Last updated in NPPES May 25, 2010

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License REGISTRATIONID#12288 (NJ) Primary
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD 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

Where does Jane O'Neill practice?
The practice location on file with NPPES is in Montville, NJ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jane O'Neill?
The National Provider Identifier (NPI) for Jane O'Neill is 1255650669, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-25.