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

Dr. David A Penfold, DDS

Individual provider Dentist · NPI 1639308430

Dr. David A Penfold, DDS is a Dentist in Mason City, Iowa. Licensed in Iowa. Registered with an NPI since 2009.

Licensed in
IA
In the registry since
2009
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

3223 4th St SW
Mason City, IA 50401-1583
Phone: (641) 424-6461
Fax: (641) 424-9186
Show map & directions

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 08654 (IA)

Record details

NPI number1639308430
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedJuly 14, 2009
Last updated in NPPESJuly 14, 2009
Mailing address3223 4th St. Sw, Mason City, IA 50401

Other providers in Mason City