Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Donald Cassidy, PHD

Individual provider Clinical Psychologist · NPI 1770511347

Donald Cassidy, PHD is a Clinical Psychologist in Bethesda, Maryland. Qualified in 1989, 37 years ago. Practices with Senior Care Therapy LLC, a 142-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
37
Licensed in
MD
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

6040 Southport Dr
Bethesda, MD 20814-1848
Phone: (301) 493-4200
Fax: (301) 493-6209
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 02693 (MD)

Record details

NPI number1770511347
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJune 30, 2006
Last updated in NPPESJuly 9, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice Senior Care Therapy Llc — 142 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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