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

Mrs. Rebecca L Tiernan, PMHNP

Individual provider Psychiatric/Mental Health Registered Nurse · NPI 1770401234

Mrs. Rebecca L Tiernan, PMHNP is a Psychiatric/Mental Health Registered Nurse in Oakley, Michigan. Practices as a sole proprietor. Licensed in Michigan.

Licensed in
MI
In the registry since
2026
What do these letters mean?
PMHNP — Psychiatric-Mental Health Nurse Practitioner
A nurse practitioner specialising in mental health, able to prescribe psychiatric medication.

See every abbreviation used in this directory →

Practice location Address checks out

12204 W Sharon Rd
Oakley, MI 48649-9718
Phone: (517) 449-0791
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Registered Nurse (primary) Taxonomy 163WP0808X · Licence 4704347762 (MI)

Record details

NPI number1770401234
Entity typeIndividual (Type 1)
GenderFemale
Credentials PMHNP
Sole proprietorYes
NPI enumeratedJuly 9, 2026
Last updated in NPPESJuly 9, 2026
Certification dateJuly 9, 2026