Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ariana Demetrio, RN
Registered Nurse in Cambridge, MA · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1629613203
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Registry record
Entity type Individual (Type 1)
Name Ariana Demetrio
Credential RN
Sex Female
Practice address 163 Gore St, Cambridge, MA, 02141
Phone (617) 665-3066
Enumeration date Nov 7, 2019
Last updated in NPPES Aug 28, 2020
Taxonomy & licenses
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN 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 Ariana Demetrio?
Ariana Demetrio is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Kenneth Gerweck Family Medicine Physician · East Cambridge, MA NPI 1497733752 Gustavo Kinrys Psychiatry Physician · Cambridge, MA NPI 1023076676 Cambridge Public Health Commission General Acute Care Hospital · Cambridge, MA NPI 1225083785 Rebecca Joyce Nurse Practitioner · Cambridge, MA NPI 1053366450 Pedro Bonilla Psychiatry Physician · East Cambridge, MA NPI 1215951934 Peter Yeracaris Family Medicine Physician · East Cambridge, MA NPI 1801976543 Lourdes Barros Social Worker · Cambridge, MA NPI 1578636874 Ana Nava Clinical Social Worker · Cambridge, MA NPI 1942344619
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-28.