Quick answers
- Where does Eric J. Williams see patients?
- Medicare's clinician data lists 2 practice locations, including Union, NJ and Princeton Junction, NJ. Call before your visit to confirm the address.
- What is Eric J. Williams's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Eric J. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Eric J. Williams 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 Eric J. Williams?
- (855) 785-0282, as listed in official Medicare / NPI Registry data.
- What is Eric J. Williams's NPI number?
- 1699718064. 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 Eric J. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Galloping Hill RdUnion, NJ 07083 (855) 785‑0282
- 4065 Quakerbridge Rd, Suite 103Princeton Junction, NJ 08550 (888) 852‑6672
Group practices
Medicare enrollment lists Eric J. Williams as a member of this group (CMS data updated 2026-10-02).
- Compass Health Systems of New Jersey, LLC3 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Union
Clinicians with the same Medicare primary specialty in Union, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699718064 |
| 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