Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Diamond Grady-Williams, DMD

Pediatric Dentistry in Tinley Park, IL · enumerated 2021 · practices at Yaa N. Owusu Dmd, Mds, PC.

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

National Provider Identifier

1033784897

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Registry record

Entity type Individual (Type 1)

Name Dr. Diamond Grady-Williams

Credential DMD

Sex Female

Practice address 7020 Centennial Dr, Tinley Park, IL, 60477

Phone (708) 794-9526

Enumeration date May 24, 2021

Last updated in NPPES Jun 19, 2024

Taxonomy & licenses

1223P0221X Pediatric Dentistry Dental Providers · License 019033547 (IL) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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.

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Frequently asked questions

Where does Diamond Grady-Williams practice?

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

What is the NPI number for Diamond Grady-Williams?

The National Provider Identifier (NPI) for Diamond Grady-Williams is 1033784897, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Yaa N. Owusu Dmd, Mds, PC Pediatric Dentistry · Tinley Park, IL NPI 1851071500

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-19.