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

Mary S Williams, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1790768307

Mary S Williams, CRNA is a Certified Registered Nurse Anesthetist in Seneca, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2005.

Licensed in
PA
In the registry since
2005
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

See every abbreviation used in this directory →

Practice location Address checks out

100 Fairfield Dr
Seneca, PA 16346-2130
Phone: (814) 676-7843
Fax: (814) 676-7838
Show map & directions

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

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence RN162685L (PA)

Record details

NPI number1790768307
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedNovember 29, 2005
Last updated in NPPESApril 27, 2015
Mailing address68 S. Service Rd., Ste 350, Melville, NY 11747-2358

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