Dr. Benjamin H Oien

Dr. Benjamin H Oien is a Chiropractor provider (Chiropractor) practicing in Sioux Falls, SD, registered in the NPPES registry with NPI 1932173911 since 2006.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1932173911
Entity type	Individual (Type 1)
Name	Dr. Benjamin H Oien
Sex	Male
Practice address	Sioux Falls, SD, 57105
Phone	6052746436
Fax	6052754111
Enumeration date	2006-02-15
Last updated in NPPES	2013-12-27

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111N00000X	Chiropractor	Primary	1049	SD

Copy-ready billing details

Provider: Benjamin Oien
NPI: 1932173911
Taxonomy: 111N00000X (Chiropractor)
Address: Sioux Falls, SD, 57105

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1629042692	Benjamin H. Oien	Organization	Chiropractor	Sioux Falls, SD
1407074586	Orthodontic,Ltd	Organization	Orthodontics and Dentofacial Orthopedics Dentistry	Sioux Falls, SD
1366726242	Healthplex Chiropractic Clinic LLC	Organization	Chiropractor	Sioux Falls, SD

Verify this record

Cross-check NPI 1932173911 against the authoritative CMS record: view Dr. Benjamin H Oien 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

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 Benjamin Oien?

Benjamin Oien is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2013-12-27.