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

Individual provider Clinical Psychologist · NPI 1023180486

Dr. Leonard David Greenberg, PHD is a Clinical Psychologist in Lexington, Massachusetts. Qualified in 1981, 45 years ago. Accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
45
Licensed in
MA
In the registry since
2006
Specialties on file
3
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

76 Bedford St Ste 21
Lexington, MA 02420-4641
Phone: (781) 861-6662
Fax: (781) 648-4717
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Psychologist (primary) Taxonomy 103TF0000X · Licence 3139 (MA)
Clinical Psychologist Taxonomy 103TC0700X · Licence 3139 (MA)
Psychologist Taxonomy 103T00000X · Licence 3139 (MA)

Record details

NPI number1023180486
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedNovember 14, 2006
Last updated in NPPESSeptember 11, 2025

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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