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

Dr. Marc Jason Ostreicher, MD

Individual provider Internal Medicine Physician · NPI 1831420967

Dr. Marc Jason Ostreicher, MD is an Internal Medicine in Cedarhurst, New York. Graduated from Icahn School of Medicine at Mount Sinai in 2005, 21 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
21
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
NY
In the registry since
2010
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

123 Maple Ave Ste 202
Cedarhurst, NY 11516-2240
Phone: (516) 374-6363
Fax: (516) 374-6300
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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 256063 (NY)

Record details

NPI number1831420967
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 29, 2010
Last updated in NPPESAugust 1, 2011

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2005 (21 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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