NPI age
15 years
Enumerated 2010-12-28
● Active
Type 1 · Individual
DR. Joyce L. Doncaster, PHD
Doncaster is 1 of 7 psychologist providers in Katy and 1 of 3401 in Texas.
Primary specialty
Psychologist
Plus 2 subspecialties
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2010-12-28
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 3401 active psychologist providers in Texas.
NPI age
15 years
≈ at median (15 yr)
State licenses
1 state
7% of peers hold multiple states
Subspecialties
2
In the 26% of peers with subspecialties
NPI lifetime · 2010 → 2026
2010-12Enumerated in NPPES
2010
2026
Where they practice
Practice location
23147 Tranquil Springs Ln
Katy, TX 774944257
Mailing address
23147 Tranquil Springs Ln
Katy, TX 774944257
Specialties
-
Psychologist PrimaryA psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a...
-
CounselorDefinition to come...
-
PsychologistA psychologist who reflects an experimental-clinical approach distinguished by use of principles of human learning and development and theories of cognitive processing to promote meaningful change in maladaptive human behavior and thinking.
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
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