Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Kathleen Anne Butler, R.D.
Registered Dietitian in Medford, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1184758245
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Registry record
Entity type Individual (Type 1)
Name Mrs. Kathleen Anne Butler
Credential R.D.
Sex Female
Practice address 75 Riverside Ave, Suite 3, Medford, MA, 02155
Phone (781) 396-6221
Fax (781) 395-7716
Enumeration date Mar 14, 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
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.
What specialty is Kathleen Butler?
Kathleen Butler 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.
Other providers at this practice address
Browse all → Winchester Physician Associates Internal Medicine Physician · Medford, MA NPI 1053393603 Winchester Physician Associates Pediatrics Physician · Medford, MA NPI 1043293731 Clifford Michaelson Ophthalmology Physician · Medford, MA NPI 1861427320 Nancy Maddox Registered Dietitian · Medford, MA NPI 1073733804 Diane Doucette Diabetes Educator Registered Nurse · Medford, MA NPI 1154533842 Marie Walsh Condon Family Medicine Physician · Medford, MA NPI 1033301486 Janet Nolan Registered Dietitian · Medford, MA NPI 1588894539
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.