Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexa Rose Greif

Occupational Therapist in Chicago, IL · enumerated 2013.

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

National Provider Identifier

1457783250

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Alexa Rose Greif

Sex Female

Practice address 310 N Loomis St, Chicago, IL, 60607

Phone (312) 243-8487

Enumeration date Aug 2, 2013

Last updated in NPPES Nov 30, 2021

Taxonomy & licenses

225X00000X Occupational 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

How do I verify Alexa Greif's NPI record?

Cross-check NPI 1457783250 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1457783250 active?

Yes, as of the latest NPPES snapshot, NPI 1457783250 is active (record last updated 2021-11-30).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-30.