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

Julie A Jacobsen, MS, RD, LDN

Registered Dietitian in Watertown, MA · enumerated 2014 · practices at Mount Auburn Athletic Club, Inc..

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

National Provider Identifier

1245639285

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Registry record

Entity type Individual (Type 1)

Name Julie A Jacobsen

Credential MS, RD, LDN

Sex Female

Practice address Watertown, MA, 02472

Phone (617) 923-2255

Fax (617) 812-8016

Enumeration date Aug 15, 2014

Last updated in NPPES Jun 16, 2018

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

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 3653 (MA) 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 Julie Jacobsen practice?

The practice location on file with NPPES is in Watertown, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Julie Jacobsen?

The National Provider Identifier (NPI) for Julie Jacobsen is 1245639285, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Mount Auburn Athletic Club, Inc. Registered Dietitian · Watertown, MA NPI 1083029094

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-16.