Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Frank Zaker, O.D.
Optometrist in Hickory Hills, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689616625
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Registry record
Entity type Individual (Type 1)
Name Dr. Frank Zaker
Credential O.D.
Sex Male
Practice address 9602 S Roberts Rd, Hickory Hills, IL, 60457
Phone (708) 237-2020
Fax (708) 237-2210
Enumeration date Jun 12, 2006
Last updated in NPPES Sep 17, 2013
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
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
Is NPI 1689616625 active?
Yes, as of the latest NPPES snapshot, NPI 1689616625 is active (record last updated 2013-09-17).
How do I verify Frank Zaker's NPI record?
Cross-check NPI 1689616625 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-17.