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

Dr. Yak-Sing Ong, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1326015561

Dr. Yak-Sing Ong, MD is an Obstetrics & Gynecology Physician in Brooklyn, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2419 Glenwood Rd
Brooklyn, NY 11210-1147
Phone: (718) 859-5456
Fax: (718) 942-4226
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 1177251 (NY)

Record details

NPI number1326015561
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 7, 2006
Last updated in NPPESMarch 4, 2011

Other providers in Brooklyn