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

Dr. John Conrad Mastrud, DDS

Individual provider Dentist · NPI 1366577652

Dr. John Conrad Mastrud, DDS is a Dentist in Lemont, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
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.

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Practice location Address checks out

15947 W 127th St Ste H
Lemont, IL 60439-7421
Phone: (630) 257-2133
Fax: (630) 257-2146
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 019-023242 (IL)

Record details

NPI number1366577652
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedFebruary 23, 2007
Last updated in NPPESOctober 21, 2014
Mailing address15947 W. 127th Street, Suite H, Lemont, IL 60439

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