Quick answers
- Which hospitals does Constantin Friedman work at?
- Medicare's official clinician data lists Constantin Friedman at 5 hospitals: Lenox Hill Hospital, Long Island Jewish Medical Center, North Shore University Hospital, Northwell Hospital Glen Cove and Plainview Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Constantin Friedman see patients?
- Medicare's clinician data lists 2 practice locations, including Middletown, NY and New Hyde Park, NY. Call before your visit to confirm the address.
- What is Constantin Friedman's specialty?
- Medicare lists Pathology as the primary specialty.
- Does Constantin Friedman accept Medicare assignment?
- Yes. Medicare's clinician data says Constantin Friedman 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 Constantin Friedman?
- (845) 342-4774, as listed in official Medicare / NPI Registry data.
- What is Constantin Friedman's NPI number?
- 1609191055. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Constantin Friedman works
Medicare's Facility Affiliation Data lists Constantin Friedman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lenox Hill HospitalNew York, NY · Acute Care Hospital · CCN 330119
- Long Island Jewish Medical CenterNew Hyde Park, NY · Acute Care Hospital · CCN 330195
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
- Northwell Hospital Glen CoveGlen Cove, NY · Acute Care Hospital · CCN 330181
- Plainview HospitalPlainview, NY · Acute Care Hospital · CCN 330331
Practice locations
Addresses where Constantin Friedman is enrolled with Medicare (CMS data updated 2026-10-02).
- 111 Maltese DrMiddletown, NY 10940 (845) 342‑4774
- 27005 75th AveNew Hyde Park, NY 11040 (718) 470‑7000
Group practices
Medicare enrollment lists Constantin Friedman as a member of these groups (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
- Middletown Medical PC178 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Icahn School Of Medicine At Mount Sinai |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609191055 |
| 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