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

MS. Mary Ann O Post, MS, CGC

Individual provider Genetic Counselor (M.S.) · NPI 1437427507

MS. Mary Ann O Post, MS, CGC is a Genetic Counselor (M.S.) in Gary, Indiana. Licensed in Indiana. Registered with an NPI since 2011.

Licensed in
IN
In the registry since
2011
What do these letters mean?
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Practice location Address checks out

3400 Broadway Indiana University NW
Gary, IN 46408-1197
Phone: (219) 981-4277
Fax: (219) 980-6693
Show map & directions

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

Specialties & licences

Genetic Counselor (M.S.) (primary) Taxonomy 170300000X · Licence 99048206A (IN)

Record details

NPI number1437427507
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , CGC
Sole proprietorNo
NPI enumeratedDecember 5, 2011
Last updated in NPPESDecember 5, 2011