NPI age
9 years
Enumerated 2017-05-25
● Active
Type 1 · Individual
Peter Theiss, MD
Theiss is 1 of 1 neurological surgery providers in Mansfield and 1 of 947 in Texas.
Primary specialty
Neurological Surgery
Plus 2 subspecialties
Licensed in
TX, IL
2 states
Status
Active
No deactivations on record
Last NPPES update
2025-07-21
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 947 active neurological surgery providers in Texas.
NPI age
9 years
↓ 8 yr below median (17 yr)
State licenses
2 states
Top 80% — 19% of peers are multi-state
Subspecialties
1
In the 31% of peers with subspecialties
NPI lifetime · 2017 → 2026
2017-05Enumerated in NPPES
2017
2026
Where they practice
Practice location
252 Matlock Rd Ste 234
Mansfield, TX 760636565
Mailing address
252 Matlock Rd Ste 234
Mansfield, TX 760636565
Specialties
-
Neurological Surgery PrimaryA neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems,...
-
Student in an Organized Health Care Education/Training ProgramAn individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Practice context
Part of a multi-provider practice. 3 other active providers share this practice address in NPPES.
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