Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gary M Leven
Pharmacist in Lake in the Hills, IL · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427338987
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Registry record
Entity type Individual (Type 1)
Name Gary M Leven
Sex Male
Practice address 100 N Randall Rd, Lake in the Hills, IL, 60156
Phone (847) 658-7051
Fax (847) 658-4071
Enumeration date Aug 27, 2011
Last updated in NPPES Aug 27, 2011
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 Gary Leven practice?
The practice location on file with NPPES is in Lake in the Hills, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gary Leven?
The National Provider Identifier (NPI) for Gary Leven is 1427338987, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Walgreen Co Pharmacy · Lake in the Hills, IL NPI 1972518132 Beth Peirce Pharmacist · Lake in the Hills, IL NPI 1467733873 Angela Dierking Pharmacist · Lake in the Hills, IL NPI 1992087308 Peggy Luchowski Pharmacist · Lake in the Hills, IL NPI 1255614558 Elizabeth Mergen Pharmacist · Lake in the Hills, IL NPI 1972886760 Gwa Optical LLC Eyewear Supplier · Lake in the Hills, IL NPI 1295383271 Amir Kagdi Pharmacist · Lake in the Hills, IL NPI 1013520030 Michelle Hong Pharmacist · Lake in the Hills, IL NPI 1437722907
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-27.