Quick answers
- Where does Sofya A. Kleyn see patients?
- Medicare's clinician data lists 5 practice locations, including Richmond Hill, NY, Brooklyn, NY and New York, NY. Call before your visit to confirm the address.
- What is Sofya A. Kleyn's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Sofya A. Kleyn accept Medicare assignment?
- Yes. Medicare's clinician data says Sofya A. Kleyn 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 Sofya A. Kleyn?
- (718) 441-0300, as listed in official Medicare / NPI Registry data.
- What is Sofya A. Kleyn's NPI number?
- 1972628865. 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 Sofya A. Kleyn is enrolled with Medicare (CMS data updated 2026-10-02).
- 11701 84th AveRichmond Hill, NY 11418 (718) 441‑0300
- 1837 E 17th St, Apt 5aBrooklyn, NY 11229 (917) 554‑5735
- 225 Broadway, Suite 910New York, NY 10007 (212) 571‑5000
- 53 Ocean AveBay Shore, NY 11706 (631) 206‑1200
- 699 Stanley AveBrooklyn, NY 11207 (347) 689‑8880
Group practices
Medicare enrollment lists Sofya A. Kleyn as a member of these groups (CMS data updated 2026-10-02).
- NYC Medical Doctor P.C.9 clinicians in the group
- Modern Medical PC7 clinicians in the group
- Salut Medical PC3 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Richmond Hill
Clinicians with the same Medicare primary specialty in Richmond Hill, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972628865 |
| 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