Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Arin Calderwood, RD
Registered Dietitian in Easton, MD · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1487204913
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Registry record
Entity type Individual (Type 1)
Name Mrs. Arin Calderwood
Credential RD
Sex Female
Practice address 508 Idlewild Ave Ste 3, Easton, MD, 21601
Phone (410) 697-3832
Enumeration date Sep 17, 2019
Last updated in NPPES Sep 17, 2019
Taxonomy & licenses
133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License DX4803 (MD) 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
Is NPI 1487204913 active?
Yes, as of the latest NPPES snapshot, NPI 1487204913 is active (record last updated 2019-09-17).
How do I verify Arin Calderwood's NPI record?
Cross-check NPI 1487204913 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-17.