Quick answers
- Which hospitals does Hillary A. Johnston-Cox work at?
- Medicare's official clinician data lists Hillary A. Johnston-Cox at 5 hospitals: Long Island Jewish Medical Center, North Shore University Hospital, Northwell Hospital Glen Cove, Plainview Hospital and St John's Episcopal Hospital at South Shore. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Hillary A. Johnston-Cox see patients?
- Medicare's clinician data lists 1 practice location in Manhasset, NY. Call before your visit to confirm the address.
- What is Hillary A. Johnston-Cox's specialty?
- Medicare lists Interventional Cardiology as the primary specialty.
- Does Hillary A. Johnston-Cox accept Medicare assignment?
- Yes. Medicare's clinician data says Hillary A. Johnston-Cox 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 Hillary A. Johnston-Cox offer telehealth?
- Medicare's clinician data says Hillary A. Johnston-Cox offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Hillary A. Johnston-Cox?
- (516) 562-3058, as listed in official Medicare / NPI Registry data.
- What is Hillary A. Johnston-Cox's NPI number?
- 1083031124. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Hillary A. Johnston-Cox works
Medicare's Facility Affiliation Data lists Hillary A. Johnston-Cox at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Long Island Jewish Medical CenterNew Hyde Park, NY · Acute Care Hospital · CCN 330195
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
- Northwell Hospital Glen CoveGlen Cove, NY · Acute Care Hospital · CCN 330181
- Plainview HospitalPlainview, NY · Acute Care Hospital · CCN 330331
- St John's Episcopal Hospital at South ShoreFar Rockaway, NY · Acute Care Hospital · CCN 330395
Practice locations
Addresses where Hillary A. Johnston-Cox is enrolled with Medicare (CMS data updated 2026-10-02).
- 300 Community DrManhasset, NY 11030 (516) 562‑3058
Group practices
Medicare enrollment lists Hillary A. Johnston-Cox as a member of this group (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
Specialties
- Interventional Cardiologyprimary
Other interventional cardiologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1083031124 |
| 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