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

John Fontanetta, MD

Individual provider Emergency Medicine Physician · NPI 1457380701

John Fontanetta, MD is an Emergency Medicine in Belleville, New Jersey. Graduated from Js Weill Medical College, Cornell University in 1983, 43 years ago. Practices with Rwjbh Emergency Medicine Associates, LLC, a 807-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
43
Trained at
Js Weill Medical College, Cornell University
Licensed in
NJ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1 Clara Maass Dr Clara Maass Medical Center (emergency Department)
Belleville, NJ 07109-3550
Phone: (973) 450-2100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 25MA05776900 (NJ)

Record details

NPI number1457380701
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2006
Last updated in NPPESApril 14, 2008
Mailing addressPo Box 717, Livingston, NJ 07039-0717

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Also practisesINTERNAL MEDICINE, PULMONARY DISEASE
Medical schoolJS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY
Graduated 1983 (43 years in practice)
Group practice Rwjbh Emergency Medicine Associates, Llc — 807 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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