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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MELODY KAY WILLIS MSN, RN, PMHNP-BC
NPI 1336604370
Nurse Practitioner - Psychiatric/Mental Health in Crystal Cty, MO

Active since February 04, 2019PECOS EnrolledAccepts Medicare Assignment
1420 US HIGHWAY 61, CRYSTAL CTY, MO 63028(636) 543-2230(636) 543-2231 Get Directions Write a Review

NPPES record last updated: July 31, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 31, 2026, Feb 4, 2019 (2 updates tracked since 2019).

About Melody Kay Willis Msn, Rn, Pmhnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MELODY KAY WILLIS MSN, RN, PMHNP-BC (NPI 1336604370) is an individual psychiatric/mental health provider in Crystal Cty, Missouri, licensed in Missouri (2019009372) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Jefferson, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1336604370
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMELODY KAY WILLISCredential: MSN, RN, PMHNP-BC
Location Address1420 US HIGHWAY 61Crystal Cty, MO 63028-4108
Mailing Address1420 Us Highway 61Crystal Cty, MO 63028-4108 · (636) 543-2230 · Fax (636) 543-2231
Phone(636) 543-2230
Fax(636) 543-2231
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateFebruary 4, 2019
Last NPPES UpdateJuly 31, 20262 updates tracked since enumeration
NPPES CertifiedJuly 31, 2026
✔ NPI 1336604370 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MO · 2019009372
1420 US HIGHWAY 61, Crystal Cty, MO 63028
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Oscar Insurance Company, Providence Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Melody Kay Willis Msn, Rn, Pmhnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3375871510
PECOS Enrollment IDI20190826001874
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercy Hospital Jefferson

Acute Care Hospitals · Festus, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260023
Location1400 Us Highway 61Festus, MO 63028 · Jefferson County
Emergency services

Mercy Hospital Washington

Acute Care Hospitals · Washington, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260052
Location901 East 5th StreetWashington, MO 63090 · Franklin County
Emergency services

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260077
Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63028 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MICHAEL P. COOPER D.O.
Psychiatry & Neurology (Psychiatry)
1420 US HIGHWAY 61
FESTUS, MO 63028
Jefferson County (636) 543-2230
COURTNEY LEANE MILES PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
1420 US HIGHWAY 61
FESTUS, MO 63028
Jefferson County (636) 543-2230
DR. PRAVESH P DEOTALE M.D
Psychiatry & Neurology (Child & Adolescent Psychiatry)
1420 US HIGHWAY 61
FESTUS, MO 63028
Jefferson County (636) 543-2230

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Melody Willis's NPI number?

The NPI number for Melody Willis is 1336604370. It was assigned to this individual provider in the NPPES registry on February 4, 2019.

Where is Melody Willis located?

Melody Willis practices at 1420 Us Highway 61, Crystal Cty, MO 63028. The listed phone number is (636) 543-2230.

What is Melody Willis's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Melody Willis enrolled in Medicare?

Yes. Melody Willis is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Melody Willis accept?

Health plans from Medica, Oscar Insurance Company, Providence Health Plan and UnitedHealthcare list Melody Willis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Melody Willis affiliated with any hospitals?

According to CMS data, Melody Willis is affiliated with Mercy Hospital Jefferson, Mercy Hospital Washington and Mercy Hospital South.

When was this NPI record last updated?

The NPPES record for Melody Willis was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.