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

Margaret Lee Halladay, RN

Individual provider Certified Registered Nurse Anesthetist · NPI 1477078343

Margaret Lee Halladay, RN is a Certified Registered Nurse Anesthetist (CRNA) in Charleston, South Carolina. Qualified in 2018, 8 years ago. Practices with Medical University Hospital Authority, a 220-clinician group and accepts Medicare assignment. Licensed in California, South Carolina and Virginia.

Years since qualifying
8
Licensed in
CA, SC, VA
In the registry since
2017
Specialties on file
3
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

171 Ashley Ave
Charleston, SC 29425-3038
Phone: (843) 792-1414
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 25294 (SC)
Certified Registered Nurse Anesthetist Taxonomy 367500000X · Licence 95000974 (CA)
Registered Nurse Taxonomy 163W00000X · Licence 0001245848 (VA)

Record details

NPI number1477078343
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedAugust 11, 2017
Last updated in NPPESNovember 5, 2021
Certification dateNovember 5, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Medical University Hospital Authority — 220 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Charleston