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

Dr. Diana Leon, MD

Individual provider Obstetrics Physician · NPI 1649538554

Dr. Diana Leon, MD is an Obstetrics/Gynecology in Setauket, New York. Graduated from Icahn School of Medicine at Mount Sinai in 2008, 18 years ago. Practices with Square Care Medical Group LLP, a 72-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
18
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
NY
In the registry since
2012
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

100 S Jersey Ave Unit 16
Setauket, NY 11733-2036
Phone: (631) 689-6400
Show map & directions

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

Additional practice locations (1)

  • 285 Sills Rd Ste D, East Patchogue, NY 11772-4869 — (631) 447-1032

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 262109 (NY)
Obstetrics Physician Taxonomy 207VX0000X · Licence 262109 (NY)
Gynecology Physician Taxonomy 207VG0400X · Licence 262109 (NY)

Record details

NPI number1649538554
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 27, 2012
Last updated in NPPESDecember 3, 2019
Mailing address900 Merchants Concourse Ste 216, Westbury, NY 11590-5114

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2008 (18 years in practice)
Group practice Square Care Medical Group Llp — 72 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount