Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John Leslie Lange, M.D.
Urology Physician in Fort Smith, AR · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154382802
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. John Leslie Lange
Credential M.D.
Sex Male
Practice address 5500 Ellsworth Rd., Fort Smith, AR, 72903
Phone (479) 242-2411
Fax (479) 242-2412
Enumeration date Mar 31, 2006
Last updated in NPPES Mar 22, 2013
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 |
|---|---|---|---|
| 105907001 | Medicaid | AR | - |
| 100134360A | Medicaid | OK | - |
| 53049 | Other | AR | BLUE CROSS |
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
How do I verify John Lange's NPI record?
Cross-check NPI 1154382802 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1154382802 active?
Yes, as of the latest NPPES snapshot, NPI 1154382802 is active (record last updated 2013-03-22).
Other providers at this practice address
Browse all → Urology Group of Western Arkansas Urology Physician · Fort Smith, AR NPI 1326019506 Gerald Wahman Urology Physician · Fort Smith, AR NPI 1619929346 Catherine Greene Adult Health Nurse Practitioner · Fort Smith, AR NPI 1255585477 Fort Smith Hma Pbc Management LLC Urology Physician · Fort Smith, AR NPI 1619214798
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-22.