Gregory Sierminski, DDS
NPI 1255386801 · on the registry since 2006
Practice
- Address
- 7442 Hancock Dr
Wonder Lake, IL 60097 - Phone
- (815) 728-0100
- Fax
- (815) 728-0114
Registry record
- Primary taxonomy
- Dentist
122300000X
- Licence states on file
- IL
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2026-07-13
- Status
- Not present in the most recent federal file
Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in Illinois