Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary T Rieger, O.D.

Optometrist in Fairbury, IL · enumerated 2005 · practices at Fairbury Vision Center LLC.

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

National Provider Identifier

1770572620

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary T Rieger

Credential O.D.

Sex Female

Practice address 2 Aspen Ct, Fairbury, IL, 61739

Phone (815) 692-2415

Fax (815) 692-2675

Enumeration date Oct 13, 2005

Last updated in NPPES Jul 23, 2020

Taxonomy & licenses

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 046-008997 (IL) Secondary

152WV0400X Vision Therapy Optometrist Eye and Vision Services Providers · License 046-008997 (IL) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 046-008997 (IL) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
046008997	Medicaid	IL	-
05732151	Other	IL	BLUE CROSS BLUE SHIELD

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

What specialty is Mary Rieger?

Mary Rieger is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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Fairbury Vision Center LLC Optometrist · Fairbury, IL NPI 1144639105

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-23.