Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexander Nagle, MD
Surgery Physician in Chicago, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1306871447
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Registry record
Entity type Individual (Type 1)
Name Alexander Nagle
Credential MD
Sex Male
Practice address 680 N Lake Shore Dr, Suite 1000, Chicago, IL, 60611
Phone (312) 695-9797
Enumeration date Jul 11, 2006
Last updated in NPPES Aug 24, 2020
Taxonomy & licenses
207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 036106912 (IL) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 036106912 | Medicaid | IL | - |
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 Alexander Nagle 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 Alexander Nagle?
The National Provider Identifier (NPI) for Alexander Nagle is 1306871447, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-24.