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

Mary Alice Decoursey, CNM

Individual provider Advanced Practice Midwife · NPI 1952439507

Mary Alice Decoursey, CNM is an Advanced Practice Midwife in Williamsport, Pennsylvania. Licensed in Louisiana and Pennsylvania. Registered with an NPI since 2007.

Licensed in
LA, PA
In the registry since
2007
Specialties on file
2
What do these letters mean?
CNM — Certified Nurse-Midwife
An advanced practice nurse who provides prenatal care and delivers babies.

See every abbreviation used in this directory →

Practice location Address checks out

740 High St Ste 1004
Williamsport, PA 17701-3102
Phone: (570) 321-3300
Fax: (570) 321-3301
Show map & directions

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

Specialties & licences

Advanced Practice Midwife (primary) Taxonomy 367A00000X · Licence MW010631 (PA)
Advanced Practice Midwife Taxonomy 367A00000X · Licence AP04898 (LA)

Record details

NPI number1952439507
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNM
Sole proprietorNo
NPI enumeratedMarch 2, 2007
Last updated in NPPESJune 21, 2021
Certification dateJune 21, 2021

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