Quick answers
- Where does Oleg Katcher see patients?
- Medicare's clinician data lists 2 practice locations, including Brooklyn, NY and Staten Island, NY. Call before your visit to confirm the address.
- What is Oleg Katcher's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Oleg Katcher accept Medicare assignment?
- Yes. Medicare's clinician data says Oleg Katcher 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 Oleg Katcher offer telehealth?
- Medicare's clinician data says Oleg Katcher offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Oleg Katcher?
- (718) 360-5953, as listed in official Medicare / NPI Registry data.
- What is Oleg Katcher's NPI number?
- 1598701468. 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 Oleg Katcher is enrolled with Medicare (CMS data updated 2026-10-02).
- 1765 E 19th StBrooklyn, NY 11229 (718) 360‑5953
- 5091 Emboy RdStaten Island, NY 10312 (718) 948‑0221
Group practices
Medicare enrollment lists Oleg Katcher as a member of this group (CMS data updated 2026-10-02).
- Oleg Katcher MD PC3 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Icahn School Of Medicine At Mount Sinai |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1598701468 |
| 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