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

Dr. David Mahony, PHD

Individual provider Clinical Psychologist · NPI 1649226069

Dr. David Mahony, PHD is a Clinical Psychologist in Brooklyn, New York. Qualified in 1997, 29 years ago. Practices with Northside Psychology PLLC, a 7-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
29
Licensed in
NY
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

331 Leonard St Ste 1F
Brooklyn, NY 11211-2309
Phone: (718) 668-1919
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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 013606 (NY)

Record details

NPI number1649226069
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 26, 2006
Last updated in NPPESApril 25, 2018

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Northside Psychology Pllc — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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