Dr. William Ernst , DDS
Dentist - General Practice • Sioux Falls, SD
Professional Overview & Biography Verified Profile Summary
Dr. William Ernst, DDS is a registered healthcare professional specializing in Dentist - General Practice in Sioux Falls, SD. Practice services are available at 4930 E 57TH ST under active NPI credentials.
Practice Location & Contact Primary Location
4930 E 57th St
Sioux Falls, SD 571088705
Specialty Benchmarks & Practice Insights
Comparative analytics for Dentist - General Practice in Sioux Falls, SD
Practicing in Sioux Falls, SD (333 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
CMS Verified: 2025-08-28NUCC Taxonomy Code: 1223G0001X
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
NUCC Taxonomy Code: 1223G0001X
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 4930 E 57TH ST, SIOUX FALLS, SD 571088705 (Tel: 6052025333)
Registered at 3009 TREASURE HILLS BLVD, HARLINGEN, TX 785508656
Recorded as WILLIAM ERNST, DDS
Dentist (License #41755 in TX)
NPI status registered as active in NPPES database
Registered at 3100 CARLISLE ST APT 9112, DALLAS, TX 752041553 (Tel: 9562459253)
Registered at 3100 CARLISLE ST APT 9112, DALLAS, TX 752041553 (Tel: 9562459253)
Recorded as WILLIAM ERNST
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
3009 Treasure Hills Blvd
Harlingen, TX 785508656
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.