Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Larry S Macklin, RPH
Pharmacist in Northbrook, IL · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558418137
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Registry record
Entity type Individual (Type 1)
Name Larry S Macklin
Credential RPH
Sex Male
Practice address 2750 Dundee Rd, Northbrook, IL, 60062
Phone (847) 480-1000
Fax (847) 480-1988
Enumeration date Jan 4, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy.
About the RPH 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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Larry Macklin?
Larry Macklin is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Dundee Pharmacy Inc Community/Retail Pharmacy · Northbrook, IL NPI 1033155940 Neil Macklin Pharmacist · Northbrook, IL NPI 1588765101 Robert Englander Pharmacist · Northbrook, IL NPI 1023160611 Dundee Pharmacy Inc Long Term Care Pharmacy · Northbrook, IL NPI 1225446974 Irene Schloss De Brihuega Pharmacist · Northbrook, IL NPI 1598339798
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.