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

Dr. Mario Castellanos

Individual provider Internal Medicine Physician · NPI 1548243611

Dr. Mario Castellanos is an Internal Medicine in Staten Island, New York. Graduated from Albany Medical College of Union University in 1991, 35 years ago. Practices with North Shore-Lij Medical PC, a 6,350-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
35
Trained at
Albany Medical College of Union University
Licensed in
NY
In the registry since
2005
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Practice location Address checks out

242 Mason Ave
Staten Island, NY 10305-3408
Phone: (718) 226-9464
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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 213339 (NY)

Record details

NPI number1548243611
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedNovember 22, 2005
Last updated in NPPESFebruary 4, 2008

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduated 1991 (35 years in practice)
Group practice North Shore-Lij Medical Pc — 6350 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Staten Island