Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diana Tumasz, LSW

Q: What is the NPI number for Diana Tumasz?

The National Provider Identifier (NPI) for Diana Tumasz is 1770206336, a Type 1 (individual) record in the CMS NPPES registry.

School Social Worker in Mount Prospect, IL · enumerated 2022.

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

National Provider Identifier

1770206336

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Registry record

Entity type Individual (Type 1)

Name Diana Tumasz

Credential LSW

Sex Female

Practice address 1585 Dempster St, Mount Prospect, IL, 60056

Phone (847) 315-0849

Enumeration date Sep 20, 2022

Last updated in NPPES Sep 20, 2022

Taxonomy & licenses

1041S0200X School Social Worker Behavioral Health & Social 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 is the NPI number for Diana Tumasz?

The National Provider Identifier (NPI) for Diana Tumasz is 1770206336, a Type 1 (individual) record in the CMS NPPES registry.

Where does Diana Tumasz practice?

The practice location on file with NPPES is in Mount Prospect, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Kenneth Young Center Mental Health Clinic/Center (Including Community Mental Health Center) · Mount Prospect, IL NPI 1932533841 Kenneth Young Center Mental Health Clinic/Center (Including Community Mental Health Center) · Mount Prospect, IL NPI 1518364520 Christina Hall Mental Health Counselor · Mount Prospect, IL NPI 1154790392 Rebecca Horwitz Social Worker · Mount Prospect, IL NPI 1326410192 Pamela Mcvoy Registered Nurse · Mt Prospect, IL NPI 1447603444 Mayra Ascencio Mental Health Counselor · Mount Prospect, IL NPI 1720503998 Meridian Ruby Clinical Social Worker · Mt Prospect, IL NPI 1386138485 Aisha Sheppard Social Worker · Mt Prospect, IL NPI 1811477540

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-20.