Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Alanna Marie Eisenberg, MS, RD, LDN

Registered Dietitian in Boston, MA · enumerated 2011.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1548546823

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Registry record

Entity type Individual (Type 1)

Name Mrs. Alanna Marie Eisenberg

Credential MS, RD, LDN

Sex Female

Practice address 800 Washington St, Box #900, Boston, MA, 02111

Phone (617) 636-0158

Fax (617) 636-2386

Enumeration date Oct 31, 2011

Last updated in NPPES Oct 31, 2011

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 133V00000X (MA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1548546823 active?

Yes, as of the latest NPPES snapshot, NPI 1548546823 is active (record last updated 2011-10-31).

How do I verify Alanna Eisenberg's NPI record?

Cross-check NPI 1548546823 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-31.