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

Individual provider Internal Medicine Physician · NPI 1790797322

Mark Kostin, MD is an Internal Medicine in Brooklyn, New York. Qualified in 1990, 36 years ago. Accepts Medicare assignment. Licensed in New York.

Years since qualifying
36
Licensed in
NY
In the registry since
2006
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

1655 E 13th St
Brooklyn, NY 11229-1101
Phone: (718) 339-3100
Fax: (718) 339-3905
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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 209566 (NY)

Record details

NPI number1790797322
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 12, 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 1990 (36 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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