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

Gregory H Sirounian, MD

Individual provider Orthopaedic Surgery Physician · NPI 1558356063

Gregory H Sirounian, MD is an Orthopedic Surgery in Garden City, New York. Graduated from Oregon Health Sciences University School of Medicine in 1996, 30 years ago. Practices with New York University, a 5,884-clinician group and accepts Medicare assignment. Licensed in Arizona and New York.

Years since qualifying
30
Trained at
Oregon Health Sciences University School of Medicine
Licensed in
AZ, NY
In the registry since
2005
Specialties on file
2
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

1300 Franklin Ave Ste UL3A
Garden City, NY 11530-1886
Phone: (516) 747-8900
Fax: (516) 663-8166
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 30048 (AZ)
Adult Reconstructive Orthopaedic Surgery Physician Taxonomy 207XS0114X · Licence 261465-1 (NY)

Record details

NPI number1558356063
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 12, 2005
Last updated in NPPESApril 2, 2021
Certification dateApril 2, 2021

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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