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 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.
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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on
08 December, 2025.