William Ernst is a Sioux Falls, South Dakota based Dentist who is specialized in General Practice Dentistry. He does not accept the Medicare-approved amount. Patients will be billed for the treatment. Active license number of William Ernst is D1499 for General Practice Dentistry in South Dakota. His current practice location is 4930 E 57th St, Sioux Falls. Patients can reach him at 605-202-5333.
William Ernst is the primary dental care provider for patients of all ages. He is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
Complete Profile:
William Ernst speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
Name:
William Ernst
Specialization:
Dentist
Gender:
Male
Credentials:
DDS
Accepts Medicare Assignment:
No
Practice Address:
4930 E 57th St, Sioux Falls, South Dakota, 57108-8705
Phone:
605-202-5333
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
NPI Number:
1255028072
NPI Enumeration Date:
20 Apr, 2023
NPI Last Update On:
28 Aug, 2025
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for William Ernst are as mentioned below.
License Number
Specialization
State
Status
D1499
General Practice Dentistry
South Dakota
Primary
41755
General Practice Dentistry
Texas
Secondary
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address:
3009 Treasure Hills Blvd, Harlingen, Texas
Zip:
78550-8656
Patients can reach William Ernst at 4930 E 57th St, Sioux Falls, South Dakota or can call to book an appointment on 605-202-5333. Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 October, 2025.