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

Penny Kaye Grechus, MSN, RN, PMHNP-BC

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1124648423

Penny Kaye Grechus, MSN, RN, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner in Potosi, Missouri. Licensed in Missouri. Registered with an NPI since 2020.

Licensed in
MO
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.
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.

See every abbreviation used in this directory →

Practice location Address checks out

1 Southtowne Dr
Potosi, MO 63664-5729
Phone: (573) 438-7892
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 089120 (MO)

Record details

NPI number1124648423
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , RN , PMHNP-BC
Sole proprietorNo
NPI enumeratedApril 16, 2020
Last updated in NPPESApril 16, 2020
Certification dateApril 16, 2020

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