Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maria T Doelman, O.D.

Optometrist in Downers Grove, IL · enumerated 2014.

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

National Provider Identifier

1871908863

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Registry record

Entity type Individual (Type 1)

Name Maria T Doelman

Credential O.D.

Sex Female

Practice address 3450 Lacey Rd, Downers Grove, IL, 60515

Phone (630) 743-4807

Enumeration date Jun 27, 2014

Last updated in NPPES Dec 9, 2016

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 046010822 (IL) Primary

152WL0500X Low Vision Rehabilitation Optometrist Eye and Vision Services Providers · License 046010822 (IL) Secondary

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
046010822	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.

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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 Maria Doelman?

Maria Doelman 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-09.