Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ellen E Tkach, DDS

Q: What is the NPI number for Ellen Tkach?

The National Provider Identifier (NPI) for Ellen Tkach is 1194998252, a Type 1 (individual) record in the CMS NPPES registry.

General Practice Dentistry in Grayslake, IL · enumerated 2008.

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

National Provider Identifier

1194998252

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Registry record

Entity type Individual (Type 1)

Name Dr. Ellen E Tkach

Credential DDS

Sex Female

Practice address 1846 Belvidere Rd, Grayslake, IL, 60030

Phone (847) 223-0100

Fax (847) 223-6528

Enumeration date Apr 9, 2008

Last updated in NPPES Apr 10, 2008

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
1003995	Medicaid	IL	-

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 Ellen Tkach?

The National Provider Identifier (NPI) for Ellen Tkach is 1194998252, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ellen Tkach practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-10.