Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marcia Rappaport, R.D., CDN, IBCLC
Registered Dietitian in Nyack, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013935428
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Registry record
Entity type Individual (Type 1)
Name Marcia Rappaport
Credential R.D., CDN, IBCLC
Sex Female
Practice address 36 Clinton Ave, Nyack, NY, 10960
Phone (845) 358-2641
Enumeration date Jul 17, 2006
Last updated in NPPES Nov 9, 2010
Taxonomy & licenses
133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 894883-1 (NY) 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.
Frequently asked questions
What specialty is Marcia Rappaport?
Marcia Rappaport 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-09.