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

Cynthia Mrotek

Assistant Behavior Analyst in Lemont, IL · enumerated 2019 · practices at Ace Behavior Solutions, Inc.

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

National Provider Identifier

1427692201

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Registry record

Entity type Individual (Type 1)
Name Cynthia Mrotek
Sex Female
Practice address Lemont, IL, 60439
Phone (773) 592-2653
Enumeration date Nov 4, 2019
Last updated in NPPES Jan 28, 2020

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

Taxonomy & licenses

106E00000X Assistant Behavior Analyst Behavioral Health & Social Service Providers · License 0-19-9470 (IL) 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.

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Frequently asked questions

Where does Cynthia Mrotek practice?
The practice location on file with NPPES is in Lemont, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Cynthia Mrotek?
The National Provider Identifier (NPI) for Cynthia Mrotek is 1427692201, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-28.