NPI age
20 years
Enumerated 2006-04-05
● Active
Type 1 · Individual
DR. Steven Roy Leonard, MD
Leonard is 1 of 60 thoracic surgery (cardiothoracic vascular surgery) providers in Dallas and 1 of 602 in Texas.
Primary specialty
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Plus 1 subspecialty
Licensed in
TX, CO
2 states
Status
Active
No deactivations on record
Last NPPES update
2025-06-26
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 602 active thoracic surgery (cardiothoracic vascular surgery) providers in Texas.
NPI age
20 years
≈ at median (19 yr)
State licenses
2 states
Top 79% — 20% of peers are multi-state
Subspecialties
0
41% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-04Enumerated in NPPES
2006
2026
Where they practice
Practice location
1935 Medical District Dr
Dallas, TX 752357701
Mailing address
Po Box 845347
Dallas, TX 752845347
Additional practice locations
1 secondary location on file with NPPES.
Location 2
2055 N High St, #260
Denver, CO 802055503
Specialties
-
Thoracic Surgery (Cardiothoracic Vascular Surgery) PrimaryA thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (CO) | 72674865 | |
| 05 (TX) | 126182806 | |
| 05 (NE) | 10025839700 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 1154 other active providers share this practice address in NPPES.
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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.