Dr. Glen Randal Sachau, DDS

Dr. Glen Randal Sachau is a General Practice Dentistry provider (Dentist) practicing in Spearfish, SD, registered in the NPPES registry with NPI 1518912914 since 2006. The credential DDS stands for Doctor of Dental Surgery. Practices at William Blauer DDS Pllc (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1518912914
Entity type	Individual (Type 1)
Name	Dr. Glen Randal Sachau
Credential	DDS
Sex	Male
Practice address	Spearfish, SD, 57783
Phone	6056425767
Fax	6056425769
Enumeration date	2006-05-23
Last updated in NPPES	2018-04-11

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	M-512	SD

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Glen Sachau, DDS
NPI: 1518912914
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: Spearfish, SD, 57783

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1164097531	William Blauer	Individual	General Practice Dentistry	Spearfish, SD
1396454179	William Blauer DDS Pllc	Organization	General Practice Dentistry	Spearfish, SD

Verify this record

Cross-check NPI 1518912914 against the authoritative CMS record: view Dr. Glen Randal Sachau 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 Glen Sachau?

Glen Sachau is registered in NPPES with the primary taxonomy of General Practice Dentistry. 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 2018-04-11.