Quick answers
- Where does Fallon A. Mattis see patients?
- Medicare's clinician data lists 1 practice location in Ewing, NJ. Call before your visit to confirm the address.
- What is Fallon A. Mattis's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Fallon A. Mattis accept Medicare assignment?
- Yes. Medicare's clinician data says Fallon A. Mattis 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 Fallon A. Mattis?
- (800) 997-6196, as listed in official Medicare / NPI Registry data.
- What is Fallon A. Mattis's NPI number?
- 1558686345. 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 Fallon A. Mattis is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Charles Ewing Blvd, Princeton South Corporate Ctr Suite 160Ewing, NJ 08628 (800) 997‑6196
Group practices
Medicare enrollment lists Fallon A. Mattis as a member of this group (CMS data updated 2026-10-02).
- Doctor on Demand Professionals of New Jersey PC4 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Ewing
Clinicians with the same Medicare primary specialty in Ewing, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Pittsburgh School Of Medicine |
| Graduation year | 2010 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558686345 |
| 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