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

Mark Hajjar, MS, CGC

Individual provider Genetic Counselor (M.S.) · NPI 1780241216

Mark Hajjar, MS, CGC is a Genetic Counselor (M.S.) in Brooklyn, New York. Registered with an NPI since 2019.

In the registry since
2019
What do these letters mean?
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

506 6th St Awi - Miner 4
Brooklyn, NY 11215
Phone: (719) 780-7315
Fax: (718) 780-5756
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

Genetic Counselor (M.S.) (primary) Taxonomy 170300000X

Record details

NPI number1780241216
Entity typeIndividual (Type 1)
GenderMale
Credentials MS , CGC
Sole proprietorNo
NPI enumeratedMay 21, 2019
Last updated in NPPESMay 21, 2019

Other providers in Brooklyn