NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Alexander C Mellin, MS, ATC, LAT

Athletic Trainer in Lowell, MA · enumerated 2020.

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

National Provider Identifier

1780224246

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Alexander C Mellin
Credential MS, ATC, LAT
Sex Male
Practice address Lowell, MA, 01854
Enumeration date Jan 13, 2020
Last updated in NPPES Jan 13, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2000023944 Primary

Other identifiers

Identifier Type State Issuer
2000023944 Other - NATA BOARD OF CERTIFICATION, CERTIFIED ATHLETIC TRAINER
3249-AH-AT Other MA COMMONWEALTH OF MASSACHUSETTS DIVISION OF PROFESSIONAL LICENSURE

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 is the NPI number for Alexander Mellin?
The National Provider Identifier (NPI) for Alexander Mellin is 1780224246, a Type 1 (individual) record in the CMS NPPES registry.
Where does Alexander Mellin practice?
The practice location on file with NPPES is in Lowell, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-13.