NPI age
12 years
Enumerated 2013-06-12
● Active
Type 1 · Individual
Heather Mastrianno, PSYD
Mastrianno is 1 of 4 psychologist providers in New Braunfels and 1 of 2632 in Texas.
Primary specialty
Psychologist
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-08-05
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 2632 active psychologist providers in Texas.
NPI age
12 years
≈ at median (13 yr)
State licenses
1 state
4% of peers hold multiple states
Subspecialties
0
24% of peers hold subspecialties
NPI lifetime · 2013 → 2026
2013-06Enumerated in NPPES
2013
2026
Where they practice
Practice location
645 N Walnut Ave
New Braunfels, TX 781307925
Mailing address
645 N Walnut Ave
New Braunfels, TX 781307925
Additional practice locations
1 secondary location on file with NPPES.
Location 2
2003 Medical Pkwy Ste C
San Marcos, TX 786667554
Specialties
-
Psychologist PrimaryA psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles,...
Practice context
Part of a multi-provider practice. 22 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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