Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ashley M Gentrup, O.D.
Optometrist in Sioux Falls, SD · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1962835017
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Registry record
Entity type Individual (Type 1)
Name Dr. Ashley M Gentrup
Credential O.D.
Sex Female
Practice address 106 W 69th St, Sioux Falls, SD, 57108
Phone (605) 274-6717
Fax (605) 275-4804
Enumeration date Aug 13, 2013
Last updated in NPPES May 20, 2019
Taxonomy & licenses
152WV0400X Vision Therapy Optometrist Eye and Vision Services Providers · License 712 (SD) Secondary
152WV0400X Vision Therapy Optometrist Eye and Vision Services Providers · License 1941DT (KY) 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 |
|---|---|---|---|
| 9204450 | Medicaid | SD | - |
| 9204452 | Medicaid | SD | - |
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.
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 Ashley Gentrup?
Ashley Gentrup 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
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-20.