DR. HOWARD A GRELLER MD
NPI 1376631085
Emergency Medicine - Medical Toxicology in Newark, NJ
About Dr. Howard A Greller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HOWARD A GRELLER MD (NPI 1376631085) is an individual medical toxicology provider in Newark, New Jersey, licensed in New Jersey (25MA11394200) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with The University Hospital, and is a graduate of New York University School Of Medicine (1998).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Howard A Greller Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
The University Hospital
Acute Care Hospitals · Newark, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Howard Greller's NPI number?
The NPI number for Howard Greller is 1376631085. It was assigned to this individual provider in the NPPES registry on October 10, 2006.
Where is Howard Greller located?
Howard Greller practices at 150 Bergen St Dept Of, Newark, NJ 07103. The listed phone number is (973) 972-9280.
What is Howard Greller's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Medical Toxicology, with taxonomy code 207PT0002X.
Is Howard Greller enrolled in Medicare?
Yes. Howard Greller is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Is Howard Greller affiliated with any hospitals?
According to CMS data, Howard Greller is affiliated with The University Hospital.
When was this NPI record last updated?
The NPPES record for Howard Greller was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
