Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Alexander James Sierk, DDS, MS

Individual provider Orthodontics and Dentofacial Orthopedics Dentistry · NPI 1912111717

Dr. Alexander James Sierk, DDS, MS is an Orthodontics and Dentofacial Orthopedics Dentistry in Bettendorf, Iowa. Licensed in Iowa. Registered with an NPI since 2007.

Licensed in
IA
In the registry since
2007
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.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

1918 Middle Rd
Bettendorf, IA 52722-3292
Phone: (563) 359-8211
Fax: (563) 359-5710
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthodontics and Dentofacial Orthopedics Dentistry (primary) Taxonomy 1223X0400X · Licence 08335 (IA)

Record details

NPI number1912111717
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS , MS
Sole proprietorNo
NPI enumeratedMay 10, 2007
Last updated in NPPESJuly 8, 2007

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