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

Dr. Alan Leon Nissenbaum, MD

Individual provider Nephrology Physician · NPI 1295879120

Dr. Alan Leon Nissenbaum, MD is an Internal Medicine in Brooklyn, New York. Qualified in 1983, 43 years ago. Practices as a sole proprietor, works from 3 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
43
Licensed in
NY
In the registry since
2007
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

3915 Avenue V Ste 104
Brooklyn, NY 11234-5156
Phone: (718) 252-8440
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1435 86th St, Brooklyn, NY 11228-3435 — (718) 256-5800
  • 1636 E 14th St, Brooklyn, NY 11229-1100 — (718) 998-7363

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 177636 (NY)

Record details

NPI number1295879120
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 16, 2007
Last updated in NPPESSeptember 1, 2022
Certification dateSeptember 1, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesNEPHROLOGY
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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