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

Dr. Carol Ann Mertins, APRN, BC

Individual provider Adult Health Clinical Nurse Specialist · NPI 1366606618

Dr. Carol Ann Mertins, APRN, BC is an Adult Health Clinical Nurse Specialist in Watertown, Wisconsin. Practices as a sole proprietor. Licensed in Wisconsin.

Licensed in
WI
In the registry since
2008
Specialties on file
2
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
BC — Board Certified
Appended to another credential to show current board certification, as in APRN-BC.

See every abbreviation used in this directory →

Practice location Address checks out

415 S 8th St
Watertown, WI 53094-4730
Phone: (920) 206-7797
Fax: (920) 206-0870
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 3055-33 (WI)
Adult Health Clinical Nurse Specialist Taxonomy 364SA2200X · Licence 3055-33 (WI)

Record details

NPI number1366606618
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN , BC
Sole proprietorYes
NPI enumeratedJuly 16, 2008
Last updated in NPPESApril 5, 2017