NPI age
19 years
Enumerated 2006-07-10
● Active
Type 1 · Individual
Tulio A Diaz, M.D.
Diaz is 1 of 58 internal medicine providers in Dallas and 1 of 883 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-09-05
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 883 active internal medicine providers in Texas.
NPI age
19 years
↑ 2 yr above median (17 yr)
State licenses
1 state
21% of peers hold multiple states
Subspecialties
1
In the 72% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-07Enumerated in NPPES
2006
2026
Where they practice
Practice location
8440 Walnut Hill Ln Ste 400
Dallas, TX 752313879
Mailing address
8440 Walnut Hill Ln Ste 400
Dallas, TX 752313879
Specialties
-
Internal Medicine PrimaryAn area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical...
-
Internal MedicineAn internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (MA) | 110040590 | |
| 05 (TX) | 306991602 | |
| 01 (TX) | 317822YTJC | MEDICARE PTAN |
| 01 (TX) | 317822YTJV | MAEDICARE PTAN |
Practice context
Part of a multi-provider practice. 5 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.
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