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

Dr. David E. Duffy, PHD

Individual provider Clinical Psychologist · NPI 1326244955

Dr. David E. Duffy, PHD is a Clinical Psychologist in LA Mesa, California. Qualified in 1999, 27 years ago. Practices with Memory Check Psychological Services, a Professional Corporation, a 80-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
27
Licensed in
CA
In the registry since
2007
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

8787 Center Dr
LA Mesa, CA 91942-3034
Phone: (800) 257-8715
Fax: (800) 819-1655
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY19177 (CA)

Record details

NPI number1326244955
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJune 21, 2007
Last updated in NPPESJuly 8, 2007
Mailing address3364 6th Ave Apt 114, San Diego, CA 92103-5711

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Memory Check Psychological Services, A Professional Corporation — 80 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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