Thomas Billars, OD

Thomas Billars is a Optometrist provider (Optometrist) practicing in Sioux Falls, SD, registered in the NPPES registry with NPI 1043230584 since 2006. The credential OD stands for Doctor of Optometry.

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NPI	1043230584
Entity type	Individual (Type 1)
Name	Thomas Billars
Credential	OD
Sex	Male
Practice address	200 W 37TH ST, Sioux Falls, SD, 57105
Phone	6053362020
Fax	6057252614
Enumeration date	2006-07-20
Last updated in NPPES	2007-12-03

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
152W00000X	Optometrist	Primary	103	SD

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
9201134	Medicaid	SD	—

Copy-ready billing details

Provider: Thomas Billars, OD
NPI: 1043230584
Taxonomy: 152W00000X (Optometrist)
Address: 200 W 37TH ST, Sioux Falls, SD, 57105

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1427408798	Kristen Kramlich	Individual	Optometrist	Sioux Falls, SD

Verify this record

Cross-check NPI 1043230584 against the authoritative CMS record: view Thomas Billars on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Thomas Billars?

Thomas Billars 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-12-03.