Quick answers
- Where does John Y. Chun see patients?
- Medicare's clinician data lists 2 practice locations, including Wayne, NJ and Paramus, NJ. Call before your visit to confirm the address.
- What is John Y. Chun's specialty?
- Medicare lists Anesthesiology as the primary specialty, and also Pain Management.
- Does John Y. Chun accept Medicare assignment?
- Yes. Medicare's clinician data says John Y. Chun 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 Y. Chun?
- (973) 709-1900, as listed in official Medicare / NPI Registry data.
- What is John Y. Chun's NPI number?
- 1609858935. 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 Y. Chun is enrolled with Medicare (CMS data updated 2026-10-02).
- 1176 Hamburg TpkeWayne, NJ 07470 (973) 709‑1900
- 80 Eisenhower Dr, Suite 100Paramus, NJ 07652 (201) 336‑1100
Group practices
Medicare enrollment lists John Y. Chun as a member of these groups (CMS data updated 2026-10-02).
- Gastroenterology Associates of New Jersey LLC80 clinicians in the group
- Advanced Ambulatory Anesthesia LLC9 clinicians in the group
Specialties
- Anesthesiologyprimary
- Pain Managementalso
Other anesthesiologists in Wayne
Clinicians with the same Medicare primary specialty in Wayne, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Creighton University School Of Medicine |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609858935 |
| 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