Quick answers
- Which hospitals does Katherine Ruddy work at?
- Medicare's official clinician data lists Katherine Ruddy at 4 hospitals: Hunterdon Medical Center, Los Angeles General Medical Center, Morristown Medical Center and Overlook Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Katherine Ruddy see patients?
- Medicare's clinician data lists 1 practice location in Summit, NJ. Call before your visit to confirm the address.
- What is Katherine Ruddy's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Neurology.
- Does Katherine Ruddy accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine Ruddy 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.
- Does Katherine Ruddy offer telehealth?
- Medicare's clinician data says Katherine Ruddy offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Katherine Ruddy?
- (908) 522-5700, as listed in official Medicare / NPI Registry data.
- What is Katherine Ruddy's NPI number?
- 1447887955. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Katherine Ruddy works
Medicare's Facility Affiliation Data lists Katherine Ruddy at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hunterdon Medical CenterFlemington, NJ · Acute Care Hospital · CCN 310005
- Los Angeles General Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050373
- Morristown Medical CenterMorristown, NJ · Acute Care Hospital · CCN 310015
- Overlook Medical CenterSummit, NJ · Acute Care Hospital · CCN 310051
Practice locations
Addresses where Katherine Ruddy is enrolled with Medicare (CMS data updated 2026-10-02).
- 33 Overlook Rd, L01Summit, NJ 07901 (908) 522‑5700
Group practices
Medicare enrollment lists Katherine Ruddy as a member of this group (CMS data updated 2026-10-02).
- Practice Associates Medical Group1,408 clinicians in the group
Specialties
- Internal Medicineprimary
- Neurologyalso
Other internal medicine doctors in Summit
Clinicians with the same Medicare primary specialty in Summit, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1447887955 |
| 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