NPI age
20 years
Enumerated 2005-11-18
● Active
Type 1 · Individual
DR. Roberta Meinhold Diddel, PHD
Diddel is 1 of 585 psychologist providers in Houston 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
2013-05-29
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
20 years
↑ 5 yr above median (15 yr)
State licenses
1 state
7% of peers hold multiple states
Subspecialties
2
In the 26% of peers with subspecialties
NPI lifetime · 2005 → 2026
2005-11Enumerated in NPPES
2005
2026
Where they practice
Practice location
3754 Georgetown St
Houston, TX 770052822
Mailing address
3754 Georgetown St
Houston, TX 770052822
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...
-
PsychologistA 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,...
-
PsychologistA psychologist, certified/licensed at the independent practice level in his/her state, who is duly trained and experienced in the delivery of direct, preventative, assessment, and therapeutic intervention services to individuals whose...
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
Recently enumerated nearby: 6 new psychologist providers have been added in Houston in the last 180 days.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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