Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Zachery Bartels, OD

Optometrist in Springfield, MO · enumerated 2005 · practices at Springfield Eye Specialists LLC.

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

National Provider Identifier

1689650947

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Registry record

Entity type Individual (Type 1)

Name Dr. William Zachery Bartels

Credential OD

Sex Male

Practice address 3041 S Kimbrough Ave, Springfield, MO, 65807

Phone (417) 470-3937

Fax (417) 470-3938

Enumeration date Dec 19, 2005

Last updated in NPPES Apr 30, 2024

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2015011922 (MO) Primary

152W00000X Optometrist Eye and Vision Services Providers · License 046009703 (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
0740183	Other	IA	GROUP IA MEDICAID #
977130	Other	IL	IL GROUP MEDICARE #
0443796	Medicaid	IA	-
1689350947	Medicaid	MO	-
046009703	Medicaid	IL	-
26568	Other	IA	IA GROUP MEDICARE #

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 William Bartels?

William Bartels 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.

Other providers at this practice address

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Robert Slinker Optometrist · Springfield, MO NPI 1619016383 Springfield Eye Specialists LLC Durable Medical Equipment & Medical Supplies · Springfield, MO NPI 1790299311

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-30.