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

Dr. H Ray Duncan, DDS

Individual provider Orthodontics and Dentofacial Orthopedics Dentistry · NPI 1750427886

Dr. H Ray Duncan, DDS is an Orthodontics and Dentofacial Orthopedics Dentistry in Aberdeen, South Dakota. Practices as a sole proprietor. Licensed in North Dakota and South Dakota.

Licensed in
ND, SD
In the registry since
2007
Specialties on file
2
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

2319 6th Ave SE
Aberdeen, SD 57401-5119
Phone: (605) 225-5761
Fax: (605) 225-3296
Show map & directions

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

Specialties & licences

Orthodontics and Dentofacial Orthopedics Dentistry (primary) Taxonomy 1223X0400X · Licence M354 (SD)
Orthodontics and Dentofacial Orthopedics Dentistry Taxonomy 1223X0400X · Licence 1850 (ND)

Record details

NPI number1750427886
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedJanuary 29, 2007
Last updated in NPPESAugust 10, 2007
Mailing address2319 6th Ave Se, Aberdeen, SD 57401-5119

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