Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dana Brennan, RD, LDN
Registered Dietitian in Boston, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497970099
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Registry record
Entity type Individual (Type 1)
Name Dana Brennan
Credential RD, LDN
Sex Female
Practice address 165 Cambridge St, Suite 402, Boston, MA, 02114
Phone (617) 724-0903
Fax (617) 726-4277
Enumeration date Apr 17, 2007
Last updated in NPPES Jul 8, 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
Where does Dana Brennan practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Dana Brennan?
The National Provider Identifier (NPI) for Dana Brennan is 1497970099, a Type 1 (individual) record in the CMS NPPES registry.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.