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

Dr. Marzena Gieniusz, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1366886640

Dr. Marzena Gieniusz, MD is a Geriatric Medicine in Great Neck, New York. Qualified in 2013, 13 years ago. Practices with North Shore-Lij Medical PC, a 6,350-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
13
Licensed in
NY
In the registry since
2013
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

865 Northern Blvd Ste 201
Great Neck, NY 11021-5310
Phone: (516) 708-2520
Fax: (516) 708-2585
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 150 55th St, Brooklyn, NY 11220-2508 — (718) 630-7000

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 285221 (NY)

Record details

NPI number1366886640
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 17, 2013
Last updated in NPPESMay 14, 2018

Medicare enrollment

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

Medicare specialtyGERIATRIC MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice North Shore-Lij Medical Pc — 6350 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

Other providers in Great Neck