NPI age
19 years
Enumerated 2006-11-09
● Active
Type 1 · Individual
DR. John W Cassidy, M.D.
Cassidy is 1 of 2 psychiatry & neurology providers in Houston and 1 of 8 in Texas.
Primary specialty
Psychiatry & Neurology
Plus 4 subspecialties
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2022-09-19
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 8 active psychiatry & neurology providers in Texas.
NPI age
19 years
↑ 15 yr above median (4 yr)
State licenses
1 state
12% of peers hold multiple states
Subspecialties
4
In the 37% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-11Enumerated in NPPES
2006
2026
Where they practice
Practice location
1 Riverway, Suite 600
Houston, TX 770561920
Mailing address
1 Riverway Ste 700
Houston, TX 770561988
Specialties
-
Psychiatry & Neurology PrimaryA Brain Injury Medicine physician specializes in disorders of brain function due to injury and disease. These disorders encompass a range of medical, physical, neurologic, cognitive, sensory, and behavioral disorders that result in...
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Psychiatry & NeurologyBehavioral Neurology & Neuropsychiatry is a medical subspecialty involving the diagnosis and treatment of neurologically based behavioral issues.
-
Psychiatry & NeurologyA Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
-
Psychiatry & NeurologyA neurologist who specializes in the treatment of individuals with developmental delays and learning disorders associated with cerebral palsy, spina bifida, autism, and other chronic neurologic conditions.
-
Psychiatry & NeurologyA Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders...
Practice context
Part of a multi-provider practice. 2 other active providers share this practice address in NPPES.
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