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

Yak-Sing Ong, MD, PC

Organization Gynecology Physician · NPI 1821396581

Yak-Sing Ong, MD, PC is a Gynecology Physician in Brooklyn, New York. Licensed in New York. Registered with an NPI since 2011.

Licensed in
NY
In the registry since
2011
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

2419 Glenwood Rd
Brooklyn, NY 11210-1147
Phone: (718) 859-5456
Fax: (718) 942-4226
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gynecology Physician (primary) Taxonomy 207VG0400X · Licence 117725 (NY)

Record details

NPI number1821396581
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Yak-Sing Ong — President · (718) 859-5456
NPI enumeratedMarch 4, 2011
Last updated in NPPESMarch 4, 2011
Mailing address2419 Glenwood Rd, Brooklyn, NY 11210-1147

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