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

John Mazzocco, DDS

Individual provider Periodontics · NPI 1396511291

John Mazzocco, DDS is a Periodontics in Saint Charles, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2023
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

525 Tyler Rd
Saint Charles, IL 60174-3305
Phone: (630) 377-4677
Show map & directions

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

Specialties & licences

Periodontics (primary) Taxonomy 1223P0300X · Licence 019.036975 (IL)

Record details

NPI number1396511291
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedNovember 30, 2023
Last updated in NPPESJuly 27, 2026
Certification dateJuly 27, 2026
Mailing address525 Tyler Rd, Saint Charles, IL 60174-3305