Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Alexander Korenfeld, MD

Individual provider Internal Medicine Physician · NPI 1063428803

Dr. Alexander Korenfeld, MD is an Internal Medicine in Cliffside Park, New Jersey. Qualified in 1977, 49 years ago. Practices with Renaissance General Medicine PC, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New Jersey and New York.

Years since qualifying
49
Licensed in
NJ, NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

596 Anderson Ave Ste 302
Cliffside Park, NJ 07010-1831
Phone: (201) 943-2700
Fax: (201) 943-2646
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 63357 (NJ)
Internal Medicine Physician Taxonomy 207R00000X · Licence 204339 (NY)

Record details

NPI number1063428803
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 1, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1977 (49 years in practice)
Group practice Renaissance General Medicine Pc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Cliffside Park