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

Robert John Greiner, MD

Individual provider Pediatric Hematology & Oncology Physician · NPI 1477744258

Robert John Greiner, MD is a Pediatric Hematology & Oncology Physician in Hershey, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2007.

Licensed in
PA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

500 University Dr
Hershey, PA 17033-2360
Phone: (800) 243-1455
Show map & directions

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

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence MD436460 (PA)

Record details

NPI number1477744258
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 6, 2007
Last updated in NPPESJune 15, 2013
Mailing addressPo Box 858, Hershey, PA 17033-0858

Other providers in Hershey