Quick answers
- Which hospitals does Seunghwan Byun work at?
- Medicare's official clinician data lists Seunghwan Byun at 2 hospitals: Nyack Hospital and White Plains Hospital Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Seunghwan Byun see patients?
- Medicare's clinician data lists 6 practice locations, including Nyack, NY, Binghamton, NY and Lynbrook, NY. Call before your visit to confirm the address.
- What is Seunghwan Byun's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Seunghwan Byun accept Medicare assignment?
- Yes. Medicare's clinician data says Seunghwan Byun 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 Seunghwan Byun offer telehealth?
- Medicare's clinician data says Seunghwan Byun offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Seunghwan Byun?
- (845) 348-2000, as listed in official Medicare / NPI Registry data.
- What is Seunghwan Byun's NPI number?
- 1013399294. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Seunghwan Byun works
Medicare's Facility Affiliation Data lists Seunghwan Byun at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Nyack HospitalNyack, NY · Acute Care Hospital · CCN 330104
- White Plains Hospital CenterWhite Plains, NY · Acute Care Hospital · CCN 330304
Practice locations
Addresses where Seunghwan Byun is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 160 N Midland AveNyack, NY 10960 (845) 348‑2000
- 169 Riveride DrBinghamton, NY 13905 (607) 798‑5671
- 243 Atlantic AveLynbrook, NY 11563 (516) 634‑1400
- 30 Cragmere RdAirmont, NY 10901 (216) 273‑9800
- 41 E Post RdWhite Plains, NY 10601 (914) 681‑0600
Group practices
Medicare enrollment lists Seunghwan Byun as a member of these groups (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
- East Post Road Medical Services PC429 clinicians in the group
- Cogent Medical Care PC154 clinicians in the group
- Empire Wound Physician Services PLLC7 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Nyack
Clinicians with the same Medicare primary specialty in Nyack, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1013399294 |
| 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