Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Arin P. Lotter

Physical Therapist in Nashua, NH · enumerated 2021.

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

National Provider Identifier

1811566698

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Registry record

Entity type Individual (Type 1)

Name Arin P. Lotter

Sex Female

Practice address 20 Industrial Park Dr, Nashua, NH, 03062

Phone (603) 882-4500

Enumeration date Jun 24, 2021

Last updated in NPPES Jun 24, 2021

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

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

What specialty is Arin Lotter?

Arin Lotter is registered in NPPES with the primary taxonomy of Physical Therapist. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-24.