Quick answers
- Which hospitals does John F. Koval work at?
- Medicare's official clinician data lists John F. Koval at 2 hospitals: Hudson Valley Hospital Center and White Plains Hospital Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John F. Koval see patients?
- Medicare's clinician data lists 4 practice locations, including Cortlandt Manor, NY and Yorktown Heights, NY. Call before your visit to confirm the address.
- What is John F. Koval's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does John F. Koval accept Medicare assignment?
- Yes. Medicare's clinician data says John F. Koval 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 F. Koval?
- (914) 736-1100, as listed in official Medicare / NPI Registry data.
- What is John F. Koval's NPI number?
- 1962405597. 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 F. Koval works
Medicare's Facility Affiliation Data lists John F. Koval 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
- White Plains Hospital CenterWhite Plains, NY · Acute Care Hospital · CCN 330304
Practice locations
Addresses where John F. Koval is enrolled with Medicare (CMS data updated 2026-10-02).
- 1968 Crompond RdCortlandt Manor, NY 10567 (914) 736‑1100
- 1978 Crompond RdCortlandt Manor, NY 10567
- 1980 Crompond RdCortlandt Manor, NY 10567
- 2651 Strang BlvdYorktown Heights, NY 10598 (914) 849‑2951
Group practices
Medicare enrollment lists John F. Koval as a member of these groups (CMS data updated 2026-10-02).
- White Plains Physician Services PC386 clinicians in the group
- The Westchester Medical Practice PC196 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Cortlandt Manor
Clinicians with the same Medicare primary specialty in Cortlandt Manor, NY — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962405597 |
| 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