Quick answers
- Which hospitals does Stephen Mercer work at?
- Medicare's official clinician data lists Stephen Mercer at 1 hospital: University Medical Center of Princeton at Plainsboro. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephen Mercer see patients?
- Medicare's clinician data lists 3 practice locations, including Plainsboro, NJ, Doylestown, PA and Sellersville, PA. Call before your visit to confirm the address.
- What is Stephen Mercer's specialty?
- Medicare lists Pathology as the primary specialty.
- Does Stephen Mercer accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen Mercer 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 Stephen Mercer?
- (609) 853-6800, as listed in official Medicare / NPI Registry data.
- What is Stephen Mercer's NPI number?
- 1740449297. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stephen Mercer works
Medicare's Facility Affiliation Data lists Stephen Mercer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University Medical Center of Princeton at PlainsboroPlainsboro, NJ · Acute Care Hospital · CCN 310010
Practice locations
Addresses where Stephen Mercer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Plainsboro RdPlainsboro, NJ 08536 (609) 853‑6800
- 2003 Lower State RdDoylestown, PA 18901 (215) 345‑6647
- 920 Lawn Ave, Suite 6Sellersville, PA 18960 (267) 354‑1440
Group practices
Medicare enrollment lists Stephen Mercer as a member of these groups (CMS data updated 2026-10-02).
- Dermatology and Mohs Surgery Center PC14 clinicians in the group
- Pathology Associates of Princeton8 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Plainsboro
Clinicians with the same Medicare primary specialty in Plainsboro, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of Ny Upstate Medical University |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740449297 |
| 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