Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marianne Denise Leduc, RD,LDN,CDE
Registered Dietitian in Lowell, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578604260
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Registry record
Entity type Individual (Type 1)
Name Marianne Denise Leduc
Credential RD,LDN,CDE
Sex Female
Practice address 1 Hospital Dr, Lowell, MA, 01852
Phone (978) 458-1411
Fax (978) 934-8590
Enumeration date Feb 8, 2007
Last updated in NPPES Jul 9, 2007
Taxonomy & licenses
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.
Frequently asked questions
What specialty is Marianne Leduc?
Marianne Leduc is registered in NPPES with the primary taxonomy of Registered Dietitian. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all → Do Not Use - the Lowell General Hospital General Acute Care Hospital · Lowell, MA NPI 1013983287 Puay Eng Tan Anatomic Pathology & Clinical Pathology Physician · Lowell, MA NPI 1235196460 John Mcdonald Physician Assistant · Lowell, MA NPI 1609834043 Lowell Radiological Associates, PC Diagnostic Radiology Physician · Lowell, MA NPI 1790736080 Anaesthesia Associates of Massachusetts, PC Interventional Pain Medicine Physician · Lowell, MA NPI 1922051622 Edward Parsons Pulmonary Disease Physician · Lowell, MA NPI 1598718686 Margaret Newman Diagnostic Radiology Physician · Lowell, MA NPI 1922046127 Paul Tower Diagnostic Radiology Physician · Lowell, MA NPI 1568400778
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.