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

Mary Kristine Ellis, MD

Individual provider Family Medicine Physician · NPI 1134447329

Mary Kristine Ellis, MD is a Family Practice in Oceanside, New York. Qualified in 2009, 17 years ago. Practices with Mount Sinai School of Medicine, a 151-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Florida and New York.

Years since qualifying
17
Licensed in
FL, NY
In the registry since
2010
Specialties on file
3
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

196 Merrick Rd
Oceanside, NY 11572-1420
Phone: (516) 255-8400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 250 Fulton Ave, Hempstead, NY 11550-3917 — (516) 497-7520

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 277569 (NY)
Family Medicine Physician Taxonomy 207Q00000X · Licence ME116438 (FL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1134447329
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 12, 2010
Last updated in NPPESDecember 6, 2022
Certification dateDecember 6, 2022

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Mount Sinai School Of Medicine — 151 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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