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

Halley Gail Sage, MSN, APN, CPNP

Individual provider Pediatric Nurse Practitioner · NPI 1720407497

Halley Gail Sage, MSN, APN, CPNP is a Pediatric Nurse Practitioner in Greenville, South Carolina. Licensed in South Carolina. Registered with an NPI since 2014.

Licensed in
SC
In the registry since
2014
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
APN — Advanced Practice Nurse
The umbrella title some states use for nurse practitioners and other advanced practice nurses.
CPNP — Certified Pediatric Nurse Practitioner
A nurse practitioner certified in paediatrics.

See every abbreviation used in this directory →

Practice location Address checks out

225 Adley Way
Greenville, SC 29607-6511
Phone: (864) 987-9747
Fax: (864) 987-9770
Show map & directions

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

Specialties & licences

Pediatric Nurse Practitioner (primary) Taxonomy 363LP0200X · Licence 27584 (SC)

Record details

NPI number1720407497
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , APN , CPNP
Sole proprietorNo
NPI enumeratedApril 10, 2014
Last updated in NPPESJune 29, 2026
Certification dateJune 29, 2026

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