Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Howlin Vision Clinic, P.C.

Optometrist in Sioux Falls, SD · enumerated 2007 · authorized official Lisa Kollis-Young, Ceo.

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

National Provider Identifier

1538340575

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Registry record

Entity type Organization (Type 2)

Legal business name Howlin Vision Clinic, P.C.

Other name <Unavail>

Practice address 227 S Phillips Ave, Sioux Falls, SD, 57104

Phone (605) 367-9620

Fax (605) 988-9677

Enumeration date Nov 19, 2007

Last updated in NPPES Aug 19, 2024

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary

Authorized official

Name Lisa Kollis-Young

Title Ceo

Phone (605) 332-2231

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 → Validate an NPI →

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2024-08-19. Verify at npiregistry.cms.hhs.gov.

Where is Howlin Vision Clinic, P.C. located?

The practice location on file with NPPES is in Sioux Falls, SD.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-19.