NPI age
20 years
Enumerated 2005-09-15
● Active
Type 1 · Individual
Thaddeus Rex Tolleson, MD
Tolleson is 1 of 19 internal medicine providers in Tyler 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
2017-04-26
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
20 years
↑ 3 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 · 2005 → 2026
2005-09Enumerated in NPPES
2005
2026
Where they practice
Practice location
619 S Fleishel Ave, Suite 101
Tyler, TX 757012004
Mailing address
619 S Fleishel Ave, Suite 101
Tyler, TX 757012004
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 |
|---|---|---|
| 01 (TX) | 221985502 | UNITED HEALTHCARE |
| 01 (TX) | 8G7380 | BCBS |
| 01 (TX) | 8V5491 | BCBS TRINITY |
| 05 (TX) | 154221901 | |
| 01 (TX) | 7773430 | AETNA |
Practice context
Part of a multi-provider practice. 19 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 →
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