Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mahal Alvarez-Backus
Counselor in Leominster, MA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1861073611
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Registry record
Entity type Individual (Type 1)
Name Mahal Alvarez-Backus
Sex Female
Practice address 80 Erdman Way # 208, Leominster, MA, 01453
Phone (978) 870-1840
Enumeration date Apr 14, 2021
Last updated in NPPES Apr 14, 2021
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 Mahal Alvarez-Backus?
Mahal Alvarez-Backus is registered in NPPES with the primary taxonomy of Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Bonny Debeaucourt Community/Behavioral Health Agency · Leominster, MA NPI 1306368444 Briana Hansmann-Morse Community Health Worker · Leominster, MA NPI 1306362801 Bianca Alexis Mental Health Counselor · Leominster, MA NPI 1275177131 Alexandra Zajko Mental Health Counselor · Leominster, MA NPI 1992314710 Katherine Brown Clinical Social Worker · Leominster, MA NPI 1962163261 Alberto Abreu Mental Health Counselor · Leominster, MA NPI 1093589665
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-14.