Quick answers
- Where does Alexander Korenfeld see patients?
- Medicare's clinician data lists 1 practice location in Cliffside Park, NJ. Call before your visit to confirm the address.
- What is Alexander Korenfeld's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Alexander Korenfeld accept Medicare assignment?
- Yes. Medicare's clinician data says Alexander Korenfeld 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 Alexander Korenfeld offer telehealth?
- Medicare's clinician data says Alexander Korenfeld offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Alexander Korenfeld?
- (201) 943-2700, as listed in official Medicare / NPI Registry data.
- What is Alexander Korenfeld's NPI number?
- 1063428803. 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 Alexander Korenfeld is enrolled with Medicare (CMS data updated 2026-10-02).
- 596 Anderson Ave, Suite 302Cliffside Park, NJ 07010 (201) 943‑2700
Group practices
Medicare enrollment lists Alexander Korenfeld as a member of this group (CMS data updated 2026-10-02).
- Renaissance General Medicine PC2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Cliffside Park
Clinicians with the same Medicare primary specialty in Cliffside Park, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1063428803 |
| 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