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

Mrs. Mary Barbara Corwin, RN

Individual provider Case Management Registered Nurse · NPI 1700021862

Mrs. Mary Barbara Corwin, RN is a Case Management Registered Nurse in Penn Yan, New York. Licensed in New York. Registered with an NPI since 2008.

Licensed in
NY
In the registry since
2008
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

See every abbreviation used in this directory →

Practice location Address checks out

417 Liberty St SUITE2120
Penn Yan, NY 14527-1100
Phone: (315) 536-5160
Fax: (315) 536-5146
Show map & directions

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

Specialties & licences

Case Management Registered Nurse (primary) Taxonomy 163WC0400X · Licence 410131-1 (NY)

Record details

NPI number1700021862
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedDecember 3, 2008
Last updated in NPPESDecember 3, 2008

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