Quick answers
- Where does John J. Messina see patients?
- Medicare's clinician data lists 1 practice location in Elmwood Park, NJ. Call before your visit to confirm the address.
- What is John J. Messina's specialty?
- Medicare lists Pediatric Medicine as the primary specialty.
- Does John J. Messina accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Messina accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for John J. Messina?
- (973) 569-6250, as listed in official Medicare / NPI Registry data.
- What is John J. Messina's NPI number?
- 1922186311. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John J. Messina is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Broadway, Suite 203Elmwood Park, NJ 07407 (973) 569‑6250
Group practices
Medicare enrollment lists John J. Messina as a member of this group (CMS data updated 2026-10-02).
- Pediatric Cardiology Associates PC3 clinicians in the group
Specialties
- Pediatric Medicineprimary
Other pediatricians in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1922186311 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians