Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Margaret Gallagher, APN
Nurse Practitioner in Chicago, IL · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1609270859
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Margaret Gallagher
Credential APN
Sex Female
Practice address 125 S Wacker Dr, Suite 300, Chicago, IL, 60606
Phone (866) 259-1631
Fax (855) 618-2629
Enumeration date Oct 17, 2014
Last updated in NPPES Mar 8, 2015
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209011980 (IL) Primary
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 1609270859 active?
Yes, as of the latest NPPES snapshot, NPI 1609270859 is active (record last updated 2015-03-08).
How do I verify Margaret Gallagher's NPI record?
Cross-check NPI 1609270859 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 → Institute of Accent Modification, Inc. Hearing and Speech Clinic/Center · Chicago, IL NPI 1891017901 Lifestart National Fitness Phlebotomy Technician · Chicago, IL NPI 1376974923 Amy Flanagan Registered Nurse · Chicago, IL NPI 1790106474 Synthia Littleton Occupational Therapy Assistant · Chicago, IL NPI 1720502172 Sucha Chantaprasopsuk Occupational Therapist · Chicago, IL NPI 1376006981
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-08.