Quick answers
- Where does John C. Deysine see patients?
- Medicare's clinician data lists 2 practice locations, including Brooklyn, NY and New York, NY. Call before your visit to confirm the address.
- What is John C. Deysine's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does John C. Deysine accept Medicare assignment?
- Yes. Medicare's clinician data says John C. Deysine 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 John C. Deysine offer telehealth?
- Medicare's clinician data says John C. Deysine offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John C. Deysine?
- (718) 517-2900, as listed in official Medicare / NPI Registry data.
- What is John C. Deysine's NPI number?
- 1881607216. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John C. Deysine is enrolled with Medicare (CMS data updated 2026-10-02).
- 2101 Ave XBrooklyn, NY 11235 (718) 517‑2900
- 380 2nd Ave, Suite 1000New York, NY 10010 (212) 254‑3570
Group practices
Medicare enrollment lists John C. Deysine as a member of this group (CMS data updated 2026-10-02).
- Brooklyn Radiation Oncology PC5 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1881607216 |
| 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
- 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