NPI age
9 years
Enumerated 2016-08-29
● Active
Type 1 · Individual
Joan Mayfield, PHD
Mayfield is 1 of 97 clinical neuropsychologist providers in Dallas and 1 of 496 in Texas.
Primary specialty
Clinical Neuropsychologist
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2016-08-29
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 496 active clinical neuropsychologist providers in Texas.
NPI age
9 years
↓ 5 yr below median (14 yr)
State licenses
1 state
6% of peers hold multiple states
Subspecialties
0
38% of peers hold subspecialties
NPI lifetime · 2016 → 2026
2016-08Enumerated in NPPES
2016
2026
Where they practice
Practice location
9735 Windham Dr
Dallas, TX 752432320
Mailing address
9735 Windham Dr
Dallas, TX 752432320
Specialties
-
Clinical Neuropsychologist PrimaryA clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated...
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: 2 new clinical neuropsychologist providers have been added in Dallas 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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