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

Melody Kay Willis, MSN, RN, PMHNP-BC

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1336604370

Melody Kay Willis, MSN, RN, PMHNP-BC is a Nurse Practitioner in Crystal Cty, Missouri. Qualified in 2013, 13 years ago. Practices with St Anthonys Physician Organization Hospitalist Services Lc, a 139-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
13
Licensed in
MO
In the registry since
2019
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

1420 US Highway 61
Crystal Cty, MO 63028-4108
Phone: (636) 543-2230
Fax: (636) 543-2231
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 2019009372 (MO)

Record details

NPI number1336604370
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , RN , PMHNP-BC
Sole proprietorNo
NPI enumeratedFebruary 4, 2019
Last updated in NPPESJuly 31, 2026
Certification dateJuly 31, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice St Anthonys Physician Organization Hospitalist Services Lc — 139 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare