NPI age
18 years
Enumerated 2007-06-27
● Active
Type 1 · Individual
DR. Donald Leon Leass, M.D.
Leass is 1 of 688 specialist providers in Houston and 1 of 4038 in Texas.
Primary specialty
Specialist
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2007-07-08
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 4038 active specialist providers in Texas.
NPI age
18 years
≈ at median (18 yr)
State licenses
1 state
0% of peers hold multiple states
Subspecialties
0
7% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-06Enumerated in NPPES
2007
2026
Where they practice
Practice location
17070 Red Oak Dr, Suite 105
Houston, TX 770902619
Mailing address
17070 Red Oak Dr, Suite 105
Houston, TX 770902615
Specialties
-
Specialist PrimaryAn individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 1205813888 | GROUP NPI NUMBER |
| 05 (TX) | P000L06R0 |
Practice context
Part of a multi-provider practice. 35 other active providers share this practice address in NPPES.
Recently enumerated nearby: 4 new specialist providers have been added in Houston in the last 180 days.
See all →
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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.