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

Individual provider Nephrology Physician · NPI 1609134576

Dr. Marc Zelkowitz, MD is a Nephrology in Englewood, New Jersey. Qualified in 2007, 19 years ago. Practices with Bergen County Improvement Authority, a 95-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New Jersey.

Years since qualifying
19
Licensed in
NJ
In the registry since
2012
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

300 Grand Ave Ste 101
Englewood, NJ 07631-6300
Phone: (201) 567-5787
Fax: (201) 567-7652
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 250 Old Hook Rd Ste 303b, Westwood, NJ 07675-3123 — (201) 567-5787

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 25MA09115900 (NJ)

Record details

NPI number1609134576
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 30, 2012
Last updated in NPPESAugust 22, 2025
Certification dateAugust 22, 2025
Mailing address120 W 22nd St Ste 200, Oak Brook, IL 60523-1563

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Bergen County Improvement Authority — 95 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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