Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Douglas A Lee, MD
Specialist in Oak Lawn, IL · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1144229949
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Registry record
Entity type Individual (Type 1)
Name Douglas A Lee
Credential MD
Sex Male
Practice address 9921 Southwest Hwy, Oak Lawn, IL, 60453
Phone (708) 499-5678
Fax (708) 499-5685
Enumeration date Jul 14, 2005
Last updated in NPPES Jan 27, 2009
Taxonomy & licenses
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 |
|---|---|---|---|
| 100012000 | Other | IL | MEDICARE, RRM |
| 1622260 | Other | IL | BCBS 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
Is NPI 1144229949 active?
Yes, as of the latest NPPES snapshot, NPI 1144229949 is active (record last updated 2009-01-27).
How do I verify Douglas Lee's NPI record?
Cross-check NPI 1144229949 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 → Charles Berkelhammer Specialist · Oak Lawn, IL NPI 1457359697 Jeffrey Port Gastroenterology Physician · Oak Lawn, IL NPI 1285635987 Mihir Majmundar Specialist · Oak Lawn, IL NPI 1417932955 Brian Blumenstein Gastroenterology Physician · Oak Lawn, IL NPI 1194784645 Vincent Muscarello Gastroenterology Physician · Oak Lawn, IL NPI 1134188675 Thomas Arndt Gastroenterology Physician · Oak Lawn, IL NPI 1487614210 Samir Patel Gastroenterology Physician · Oak Lawn, IL NPI 1982664736 Wayne Lue Gastroenterology Physician · Oak Lawn, IL NPI 1922068428
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-27.