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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aaron D Lee, D.O.

Family Medicine Physician in Berwyn, IL · enumerated 2008.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1265690523

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Registry record

Entity type Individual (Type 1)
Name Dr. Aaron D Lee
Credential D.O.
Sex Male
Practice address 3231 S Euclid Ave, 5th Floor, Berwyn, IL, 60402
Phone (708) 783-2000
Fax (708) 783-3656
Enumeration date May 23, 2008
Last updated in NPPES Oct 5, 2022

Taxonomy & licenses

207QS0010X Sports Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 036123623 (IL) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036123623 (IL) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

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Frequently asked questions

Is NPI 1265690523 active?
Yes, as of the latest NPPES snapshot, NPI 1265690523 is active (record last updated 2022-10-05).
How do I verify Aaron Lee's NPI record?
Cross-check NPI 1265690523 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-05.