Quick answers
- Which hospitals does Leonid M. Kozer work at?
- Medicare's official clinician data lists Leonid M. Kozer at 4 hospitals: Maimonides Medical Center, Mount Sinai Beth Israel, Mount Sinai Hospital and New York Community Hospital of Brooklyn, Inc.. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Leonid M. Kozer see patients?
- Medicare's clinician data lists 4 practice locations, including Brooklyn, NY. Call before your visit to confirm the address.
- What is Leonid M. Kozer's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Leonid M. Kozer accept Medicare assignment?
- Yes. Medicare's clinician data says Leonid M. Kozer 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 Leonid M. Kozer offer telehealth?
- Medicare's clinician data says Leonid M. Kozer offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Leonid M. Kozer?
- (718) 375-2825, as listed in official Medicare / NPI Registry data.
- What is Leonid M. Kozer's NPI number?
- 1396798872. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Leonid M. Kozer works
Medicare's Facility Affiliation Data lists Leonid M. Kozer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Maimonides Medical CenterBrooklyn, NY · Acute Care Hospital · CCN 330194
- Mount Sinai Beth IsraelNew York, NY · Acute Care Hospital · closed, according to its website · CCN 330169
- Mount Sinai HospitalNew York, NY · Acute Care Hospital · CCN 330024
- New York Community Hospital of Brooklyn, Inc.Brooklyn, NY · Acute Care Hospital · CCN 330019
Practice locations
Addresses where Leonid M. Kozer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1412 E 9th StBrooklyn, NY 11230 (718) 375‑2825
- 1550 E 13th St, Apt 6 GBrooklyn, NY 11230
- 1729 E 12th St, Fl 2Brooklyn, NY 11229 (718) 375‑2825
- 2222 Coney Island AveBrooklyn, NY 11223 (718) 336‑6667
Group practices
Medicare enrollment lists Leonid M. Kozer as a member of this group (CMS data updated 2026-10-02).
- Midwood Medical P.C.4 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New York →
Other cardiologists in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1396798872 |
| 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