Quick answers
- Which hospitals does John Ko work at?
- Medicare's official clinician data lists John Ko at 1 hospital: Hudson Valley Hospital Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Ko see patients?
- Medicare's clinician data lists 1 practice location in Cortlandt Manor, NY. Call before your visit to confirm the address.
- What is John Ko's specialty?
- Medicare lists Plastic and Reconstructive Surgery as the primary specialty.
- Does John Ko accept Medicare assignment?
- Yes. Medicare's clinician data says John 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.
- What is the phone number for John Ko?
- (914) 734-3600, as listed in official Medicare / NPI Registry data.
- What is John Ko's NPI number?
- 1437236676. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Ko works
Medicare's Facility Affiliation Data lists John Ko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hudson Valley Hospital CenterCortlandt Manor, NY · Acute Care Hospital · CCN 330267
Practice locations
Addresses where John Ko is enrolled with Medicare (CMS data updated 2026-10-02).
- 1980 Crompond RdCortlandt Manor, NY 10567 (914) 734‑3600
Group practices
Medicare enrollment lists John Ko as a member of this group (CMS data updated 2026-10-02).
- The Westchester Medical Practice PC196 clinicians in the group
Specialties
Find other Plastic and Reconstructive Surgery doctors in New York →
Other plastic surgeons 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 | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437236676 |
| 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