Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Karen L. O'Brien, MSN, RN, ARNP-C

Individual provider Pediatric Nurse Practitioner · NPI 1518101674

Karen L. O'Brien, MSN, RN, ARNP-C is a Pediatric Nurse Practitioner in Charleston, South Carolina. Licensed in Florida, New Jersey and South Carolina. Registered with an NPI since 2009.

Licensed in
FL, NJ, SC
In the registry since
2009
Specialties on file
3
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

171 Ashley Ave
Charleston, SC 29425-3565
Phone: (843) 792-1414
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Nurse Practitioner (primary) Taxonomy 363LP0200X · Licence 21124 (SC)
Pediatric Nurse Practitioner Taxonomy 363LP0200X · Licence ARNP 9405374 (FL)
Pediatric Nurse Practitioner Taxonomy 363LP0200X · Licence 26NN08407200 (NJ)

Record details

NPI number1518101674
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , RN , ARNP-C
Sole proprietorNo
NPI enumeratedApril 20, 2009
Last updated in NPPESJuly 21, 2022

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