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

Dr. John L Greene, PHD

Individual provider Clinical Medical Laboratory · NPI 1740603430

Dr. John L Greene, PHD is a Clinical Medical Laboratory in Riverdale, New Jersey. Practices as a sole proprietor. Licensed in New Jersey.

Licensed in
NJ
In the registry since
2014
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

82 Newark Pompton Tpke Ste 1
Riverdale, NJ 07457-1427
Phone: (347) 879-9494
Show map & directions

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

Specialties & licences

Clinical Medical Laboratory (primary) Taxonomy 291U00000X · Licence 25MS00016000 (NJ)

Record details

NPI number1740603430
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 30, 2014
Last updated in NPPESJanuary 21, 2022
Certification dateJanuary 21, 2022
Mailing addressPo Box 31, Clifton, NJ 07015-0031

Other providers in Riverdale