Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
Douglas A Zale MD Inc
Ophthalmology Physician in Chesterton, IN · enumerated 2006 · authorized official Douglas Zale, Owner / Physician.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164591848
See something wrong? Report a correction
Registry record
Taxonomy & classification
Authorized official
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where is Douglas A Zale MD Inc located?
How current is this record?
Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-09.