Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Leah A Brown, PA-C, MMS
Physician Assistant in Chicago, IL · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780814525
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Registry record
Entity type Individual (Type 1)
Name Ms. Leah A Brown
Credential PA-C, MMS
Sex Female
Practice address 618 W Fulton St, Chicago, IL, 60661
Phone (773) 348-7171
Fax (773) 348-7414
Enumeration date Jul 14, 2009
Last updated in NPPES Jan 27, 2023
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085.002941 (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
Where does Leah Brown 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 Leah Brown?
The National Provider Identifier (NPI) for Leah Brown is 1780814525, a Type 1 (individual) record in the CMS NPPES registry.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-27.