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

Dr. Mariah Leeann Oyen, DDS

Individual provider Dentist · NPI 1548134836

Dr. Mariah Leeann Oyen, DDS is a Dentist in Hartford, South Dakota. Licensed in South Dakota. Registered with an NPI since 2025.

Licensed in
SD
In the registry since
2025
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

See every abbreviation used in this directory →

Practice location Address checks out

304 SD-38 Ste 138
Hartford, SD 57033
Phone: (605) 528-6750
Show map & directions

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence D1501 (SD)

Record details

NPI number1548134836
Entity typeIndividual (Type 1)
GenderFemale
Credentials DDS
Sole proprietorNo
NPI enumeratedOctober 1, 2025
Last updated in NPPESOctober 1, 2025
Certification dateSeptember 16, 2025

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