Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Lazar John Greenfield Jr., MD, PHD

Individual provider Neurology Physician · NPI 1841286994

Dr. Lazar John Greenfield Jr., MD, PHD is a Neurology in Farmington, Connecticut. Graduated from University of Virginia School of Medicine in 1989, 37 years ago. Practices with University of Connecticut Health Center, a 628-clinician group and accepts Medicare assignment. Licensed in Arkansas, Connecticut and Ohio.

Years since qualifying
37
Trained at
University of Virginia School of Medicine
Licensed in
AR, CT, OH
In the registry since
2005
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Partly verified

Some contact details are missing from the federal record.

Uconn Medical Group 263 Farmington Ave
Farmington, CT 06030-0001
Phone: (860) 679-4888
Fax: (860) 679-0131
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 055487 (CT)
Neurology Physician Taxonomy 2084N0400X · Licence 35076214 (OH)
Clinical Neurophysiology Physician Taxonomy 2084N0600X · Licence E-6501 (AR)
Clinical Neurophysiology Physician Taxonomy 2084N0600X · Licence 055487 (CT)

Record details

NPI number1841286994
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedSeptember 23, 2005
Last updated in NPPESSeptember 29, 2022

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice University Of Connecticut Health Center — 628 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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