Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Welch, DDS, PLLC

Organization Dental Clinic/Center · NPI 1437541380

John Welch, DDS, PLLC is a Dental Clinic/Center in Sioux City, Iowa. Licensed in Iowa. Registered with an NPI since 2015.

Licensed in
IA
In the registry since
2015
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

4801 Southern Hills Dr
Sioux City, IA 51106
Phone: (712) 274-7377
Fax: (712) 276-8432
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dental Clinic/Center (primary) Taxonomy 261QD0000X · Licence DDS-09155 (IA)

Record details

NPI number1437541380
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Welch — Owner · (515) 770-3611
NPI enumeratedMarch 2, 2015
Last updated in NPPESAugust 7, 2019
Mailing address4801 Southern Hills Dr, Sioux City, IA 51106

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