NPI age
19 years
Enumerated 2006-07-18
● Active
Type 1 · Individual
DR. Derek James Lejeune, M.D.
Lejeune is 1 of 18 internal medicine providers in Austin and 1 of 217 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX, LA
2 states
Status
Active
No deactivations on record
Last NPPES update
2023-01-19
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 217 active internal medicine providers in Texas.
NPI age
19 years
↑ 7 yr above median (12 yr)
State licenses
2 states
Top 82% — 17% of peers are multi-state
Subspecialties
1
In the 60% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-07Enumerated in NPPES
2006
2026
Where they practice
Practice location
4107 Spicewood Springs Rd Ste 100
Austin, TX 787598645
Mailing address
251 Westpark Way Ste 210
Euless, TX 760403742
Specialties
-
Internal Medicine PrimaryAn internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team...
-
Internal MedicineA physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 884655 | MEDICARE |
| 05 (TX) | 197305901 | |
| 05 (TX) | 197305908 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 10 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new internal medicine provider has been added in Austin in the last 180 days.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.