Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melissa Litwin, NP

Adult Health Nurse Practitioner in Brookfield, IL · enumerated 2020.

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

National Provider Identifier

1851998553

Verified

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Registry record

Entity type Individual (Type 1)

Name Melissa Litwin

Credential NP

Sex Female

Practice address 9127 Burlington Ave, Brookfield, IL, 60513

Phone (708) 525-4844

Enumeration date Oct 6, 2020

Last updated in NPPES Oct 6, 2020

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.022050 (IL) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1851998553 active?

Yes, as of the latest NPPES snapshot, NPI 1851998553 is active (record last updated 2020-10-06).

How do I verify Melissa Litwin's NPI record?

Cross-check NPI 1851998553 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-06.