Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Diane Beth Heyman
Optometrist in Gibson City, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013923663
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Registry record
Entity type Individual (Type 1)
Name Dr. Diane Beth Heyman
Sex Female
Practice address 220 E 1st St, Gibson City, IL, 60936
Phone (217) 784-4912
Fax (217) 784-4912
Enumeration date Aug 1, 2006
Last updated in NPPES Aug 14, 2008
Taxonomy & licenses
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 does Diane Heyman practice?
The practice location on file with NPPES is in Gibson City, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Diane Heyman?
The National Provider Identifier (NPI) for Diane Heyman is 1013923663, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-14.