Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Aaron G Cook, M.D.
Surgery Physician in Maywood, IL · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1386039261
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Registry record
Entity type Individual (Type 1)
Name Aaron G Cook
Credential M.D.
Sex Male
Practice address 2160 S 1st Ave, Loyola University Medical Center Ems Bldg 110-Room 3210, Maywood, IL, 60153
Phone (708) 327-3436
Fax (708) 327-3489
Enumeration date Mar 30, 2015
Last updated in NPPES May 26, 2015
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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
Where does Aaron Cook practice?
The practice location on file with NPPES is in Maywood, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Aaron Cook?
The National Provider Identifier (NPI) for Aaron Cook is 1386039261, 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 2015-05-26.