Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Rosemary Ilgenfritz, LDN
Nutritionist in Phila, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1700832821
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Registry record
Entity type Individual (Type 1)
Name Mrs. Rosemary Ilgenfritz
Credential LDN
Sex Female
Practice address 1401 S 31st St, Phila, PA, 19146
Phone (215) 755-7700
Fax (215) 755-3177
Enumeration date May 26, 2006
Last updated in NPPES Apr 21, 2017
Taxonomy & licenses
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 Rosemary Ilgenfritz?
Rosemary Ilgenfritz is registered in NPPES with the primary taxonomy of Nutritionist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-21.