Quick answers
- Which hospitals does Justine S. Ko work at?
- Medicare's official clinician data lists Justine S. Ko at 2 hospitals: Hospital for Special Surgery and New York-Presbyterian Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Justine S. Ko see patients?
- Medicare's clinician data lists 1 practice location in New York, NY. Call before your visit to confirm the address.
- What is Justine S. Ko's specialty?
- Medicare lists Emergency Medicine as the primary specialty, and also Sports Medicine.
- Does Justine S. Ko accept Medicare assignment?
- Yes. Medicare's clinician data says Justine S. Ko 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 Justine S. Ko offer telehealth?
- Medicare's clinician data says Justine S. Ko offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Justine S. Ko?
- (646) 962-7300, as listed in official Medicare / NPI Registry data.
- What is Justine S. Ko's NPI number?
- 1225569270. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Justine S. Ko works
Medicare's Facility Affiliation Data lists Justine S. Ko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hospital for Special SurgeryNew York, NY · Acute Care Hospital · CCN 330270
- New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · CCN 330101
Practice locations
Addresses where Justine S. Ko is enrolled with Medicare (CMS data updated 2026-10-02).
- 525 E 68th St, Emergency Physicians DeptNew York, NY 10021 (646) 962‑7300
Group practices
Medicare enrollment lists Justine S. Ko as a member of this group (CMS data updated 2026-10-02).
- Weill Medical College of Cornell2,051 clinicians in the group
Specialties
- Emergency Medicineprimary
- Sports Medicinealso
Other emergency medicine doctors in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1225569270 |
| 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