John Halversen, D.D.S

NPI 1992919831 · on the registry since 2007 · sole proprietor

Practice

Address: 1200 W State St
Rockford, IL 61102
Phone: (815) 490-1600
Fax: (815) 490-1881
Organisation at this address: Walgreen Co
Laboratory Corporation Of America
Crusaders Central Clinic Association
Crusaders Central Clinic Association
Crusaders Central Clinic Association
Inferred from a shared address, not stated in the registry.
Clinicians at this address: 173

Registry record

Primary taxonomy: 122300000X
122300000X
Also registered as: 1223G0001X
Licence states on file: IL
From the registry's licence fields, which are often incomplete.
Sex: Male
Record last updated: 2025-08-26

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