Howard A. Greller, MD
Medical Toxicology (Emergency Medicine) Physician · Newark, NJ
Howard A. Greller, MD is a medical toxicology (emergency medicine) physician with a practice address in Newark, New Jersey, and NPI 1376631085, issued on Oct 10, 2006. Check the license (New Jersey 25MA11394200, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Howard A. Greller
- Credential
- MD
- Primary taxonomy
- Medical Toxicology (Emergency Medicine) Physician 207PT0002X
- License numbers
- 25MA11394200 NJ
224207 NY
61-20314 NY
Self-reported in NPPES; status is on the state search - Practice location
- 150 Bergen St Dept OF, Newark, NJ 07103
- Phone
- (973) 972-9280
- Enumerated
- Oct 10, 2006
- Record last updated
- Jul 16, 2026
- Medicare enrollment
- Enrolled (PECOS I20220504001420); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1998
- Entity
- Type 1 · individual
Verify Howard A. Greller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA11394200Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average medical toxicology (emergency medicine) physician in 2024
49 Medicare Part D claims for 36 beneficiaries, against an average of 138 among the 103 providers of this specialty who prescribed in Part D.
Most prescribed
- Ibuprofen13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 73.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University Physician Associates OF New Jersey IncNewark, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Medical Toxicology (Emergency Medicine) Physician providers in New Jersey
There are 8 medical toxicology (emergency medicine) physician records in New Jersey.
Other medical toxicology (emergency medicine) physician records in New Jersey
- Timothy Backus, DOStratford, NJ1154735470
- Diane Calello, MDNewark, NJ1821018334
- John Kashani, DONewark, NJ1700931680
- Jessica Krueger, MDNewark, NJ1942794771
- Christopher Meaden, M.D., M.S.Newark, NJ1194110759
- Anita Mudan, MDNewark, NJ1831584903
- Mehruba Parris, M.D.Newark, NJ1710274766
Common questions
What is Howard A. Greller, MD's NPI number?
Howard A. Greller, MD's National Provider Identifier (NPI) is 1376631085, issued on Oct 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Howard A. Greller, MD located?
The NPPES record lists a practice address at 150 Bergen St Dept OF, Newark, NJ, 07103. Phone: (973) 972-9280. Providers update this record themselves, so call before visiting.
How can I verify Howard A. Greller, MD's license?
NPPES lists New Jersey license number 25MA11394200, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Howard A. Greller, MD prescribe under Medicare Part D?
In 2024, Howard A. Greller, MD had 49 Medicare Part D claims for 36 beneficiaries; the average among medical toxicology (emergency medicine) physician prescribers was 138. Part D covers Medicare prescriptions only.
What is Howard A. Greller, MD's MIPS final score?
The 2023 MIPS final score is 73.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.