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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Linda Ann Oster, DDS

General Practice Dentistry in Oak Park, IL · enumerated 2006 · practices at Marion Street Dental Ltd.

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

National Provider Identifier

1851450779

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Registry record

Entity type Individual (Type 1)
Name Ms. Linda Ann Oster
Credential DDS
Sex Female
Practice address 127 N Marion Street, Suite 2, Oak Park, IL, 60301
Phone (708) 386-4222
Fax (708) 763-8722
Enumeration date Dec 6, 2006
Last updated in NPPES Apr 24, 2019

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License 1851450779 (IL) Secondary
1223G0001X General Practice Dentistry Dental Providers · License 019019245 (IL) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Linda Oster?
Linda Oster is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-24.