Quick answers
- Which hospitals does Lewis C. Hwang work at?
- Medicare's official clinician data lists Lewis C. Hwang at 1 hospital: Newark Beth Israel Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lewis C. Hwang see patients?
- Medicare's clinician data lists 1 practice location in Belleville, NJ. Call before your visit to confirm the address.
- What is Lewis C. Hwang's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Lewis C. Hwang accept Medicare assignment?
- Yes. Medicare's clinician data says Lewis C. Hwang 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 Lewis C. Hwang?
- (973) 450-2000, as listed in official Medicare / NPI Registry data.
- What is Lewis C. Hwang's NPI number?
- 1649808858. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lewis C. Hwang works
Medicare's Facility Affiliation Data lists Lewis C. Hwang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Newark Beth Israel Medical CenterNewark, NJ · Acute Care Hospital · CCN 310002
Practice locations
Addresses where Lewis C. Hwang is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Clara Maass DrBelleville, NJ 07109 (973) 450‑2000
Group practices
Medicare enrollment lists Lewis C. Hwang as a member of this group (CMS data updated 2026-10-02).
- RWJBH Observation Associates LLC1,008 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Belleville
Clinicians with the same Medicare primary specialty in Belleville, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649808858 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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