Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gary G Gunderson, OD
Optometrist in Chicago, IL · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1699768135
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Registry record
Entity type Individual (Type 1)
Name Gary G Gunderson
Credential OD
Sex Male
Practice address 3241 S Michigan Ave, Chicago, IL, 60616
Phone (312) 949-7211
Fax (312) 949-7389
Enumeration date Aug 30, 2005
Last updated in NPPES Jan 12, 2012
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 046007260 | Medicaid | IL | - |
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 Gary Gunderson practice?
The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gary Gunderson?
The National Provider Identifier (NPI) for Gary Gunderson is 1699768135, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Janice Mcmahon Optometrist · Chicago, IL NPI 1760475297 Neil Hodur Optometrist · Chicago, IL NPI 1770576217 Tracy Matchinski Optometrist · Chicago, IL NPI 1730172271 Christine Allison Optometrist · Chicago, IL NPI 1467445908 Helen Gabriel Optometrist · Chicago, IL NPI 1164415600 Yiu-Tung Lee Optometrist · Chicago, IL NPI 1518950054 Janice Jurkus Optometrist · Chicago, IL NPI 1972596419 Valerie Kattouf Optometrist · Chicago, IL NPI 1144213687
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-12.