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

Individual provider Family Medicine Physician · NPI 1992381370

Alexandra Casey Marcy, MD is a Family Practice in Oceanside, New York. Graduated from New York Medical College in 2021, 5 years ago. Practices with Mount Sinai School of Medicine, a 151-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
5
Trained at
New York Medical College
Licensed in
NY
In the registry since
2021
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

1 Healthy Way
Oceanside, NY 11572-1551
Phone: (516) 632-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 336797 (NY)

Record details

NPI number1992381370
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2021
Last updated in NPPESJuly 29, 2025
Certification dateJuly 29, 2025

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 2021 (5 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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