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

Marianne L. Hiles, MSN, RN, APRN-CNS

Individual provider Perinatal Clinical Nurse Specialist · NPI 1356949788

Marianne L. Hiles, MSN, RN, APRN-CNS is a Perinatal Clinical Nurse Specialist in Frederick, Maryland. Licensed in Maryland. Registered with an NPI since 2020.

Licensed in
MD
In the registry since
2020
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.

See every abbreviation used in this directory →

Practice location Address checks out

400 W 7th St
Frederick, MD 21701-4506
Phone: (240) 566-3312
Show map & directions

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

Specialties & licences

Perinatal Clinical Nurse Specialist (primary) Taxonomy 364SP1700X · Licence CS00020 (MD)

Record details

NPI number1356949788
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , RN , APRN-CNS
Sole proprietorNo
NPI enumeratedOctober 16, 2020
Last updated in NPPESOctober 6, 2021
Certification dateOctober 6, 2021