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

Mary S Gilliland, CNS

Individual provider Clinical Nurse Specialist · NPI 1356589311

Mary S Gilliland, CNS is a Clinical Nurse Specialist in Stillwater, Oklahoma. Licensed in Oklahoma. Registered with an NPI since 2009.

Licensed in
OK
In the registry since
2009
What do these letters mean?
CNS — Clinical Nurse Specialist
An advanced practice nurse specialising in a patient population or setting.

See every abbreviation used in this directory →

Practice location Address checks out

1301 W 6th Ave Ste 207
Stillwater, OK 74074-4381
Phone: (405) 533-3010
Fax: (405) 533-3013
Show map & directions

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

Specialties & licences

Clinical Nurse Specialist (primary) Taxonomy 364S00000X · Licence R0030806 (OK)

Record details

NPI number1356589311
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNS
Sole proprietorNo
NPI enumeratedJanuary 29, 2009
Last updated in NPPESDecember 30, 2015