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

LADONNA JEAN WILLIAMS FNP
NPI 1861826968
Nurse Practitioner - Psychiatric/Mental Health in Sikeston, MO

Q: What is Ladonna Williams's NPI number?

The NPI number for Ladonna Williams is 1861826968. It was assigned to this individual provider in the NPPES registry on August 26, 2013.

Q: What is Ladonna Williams's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Ladonna Williams was last updated on October 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since August 26, 2013PECOS EnrolledAccepts Medicare Assignment

1226 LINN ST STE F, SIKESTON, MO 63801(573) 391-8031(573) 391-8050 Get Directions Write a Review

NPPES record last updated: October 5, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 5, 2026, Feb 1, 2020 (2 updates tracked since 2020).

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About Ladonna Jean Williams Fnp NPPES

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

LADONNA JEAN WILLIAMS FNP (NPI 1861826968) is an individual psychiatric/mental health provider in Sikeston, Missouri, licensed in Missouri (2019011201) and active in the NPI registry since August 2013. She is enrolled in Medicare PECOS, is affiliated with Missouri Delta Medical Center, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1861826968

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameLADONNA JEAN WILLIAMSCredential: FNP

Location Address1226 LINN ST STE FSikeston, MO 63801-5202

Mailing Address1226 Linn St Ste FSikeston, MO 63801-5202 · (573) 391-8031 · Fax (573) 391-8050

Phone(573) 391-8031

Fax(573) 391-8050

Sole ProprietorNo

Medical School CMSOtherGraduated 2013

Enumeration DateAugust 26, 2013

Last NPPES UpdateOctober 5, 20262 updates tracked since enumeration

NPPES CertifiedOctober 5, 2026

✔ NPI 1861826968 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in MO · 2019011201

Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 2013026043 (MO)

1226 LINN ST STE F, Sikeston, MO 63801

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ladonna Jean Williams Fnp 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 ID9739319757

PECOS Enrollment IDI20140312001832, I20240830000097

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.

Medicare Billing Reassignments

Medicare enrollment records show Ladonna Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tri-County Community Clinic, LLC

Same address

Psychiatric/Mental Health

1226 LINN ST STE F
Sikeston, MO 63801

Reassigned Medicare billing, Florida and Missouri enrollments

NPI 1811527138 (573) 391-8031

Missouri Delta Medical Center

1.0 mi

General Acute Care Hospital

1008 N MAIN ST
Sikeston, MO 63801

Reassigned Medicare billing, Missouri enrollment
203 clinicians in this Medicare group

NPI 1831269539 (573) 471-1600

Owl Adventures LLC

46 mi

Psychiatry

215 S 3RD ST
Hayti, MO 63851

Reassigned Medicare billing, Missouri enrollment
4 clinicians in this Medicare group

NPI 1255974143 (573) 922-7383

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 17

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 99458

This service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.

2,731 services210 patients

Measurement of brain wave activity (eeg), awake and drowsy 95816

Measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This procedure is done when you're awake and drowsy to understand how your brain functions during different states of consciousness.

2,470 services124 patients

Biofeedback training 90901

Biofeedback training is a technique that helps you learn to control certain body functions, like heart rate or blood pressure. Through this, you can improve your health by gaining more control over these functions. It's often used to manage stress, anxiety, or chronic pain.

2,002 services93 patients

Evaluation of neuropsychological test, first hour 96132

An evaluation of neuropsychological tests is a process to assess your brain's function. It involves tasks designed to measure cognitive abilities such as memory, attention, problem-solving, and language skills. The first hour involves initial testing and observation.

1,767 services126 patients

Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 99454

This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.

1,408 services210 patients

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457

This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.

1,366 services210 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

1,010 services174 patients

Psychotherapy with evaluation and management visit, 30 minutes 90833

Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.

994 services190 patients

Administration of developmental test, first hour 96112

The administration of a developmental test, for the first hour, is a process where a professional evaluates a child's cognitive, behavioral, and social growth. This helps identify any potential developmental delays or issues early on, enabling appropriate intervention.

743 services37 patients

Therapy procedure for a range of mental processes, initial 15 minutes 97129

This therapy session, lasting 15 minutes, focuses on improving your mental processes. It's an initial step towards understanding your mental health needs. The therapist will engage in conversation, listen to your concerns, and help identify areas for improvement.

656 services75 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

630 services131 patients

Assessment of and care planning for patient with impaired thought processing, typically 60 minutes 99483

This service involves a thorough evaluation of your thought processes, which may be impacting your daily life. In a typical 50-minute session, a healthcare professional will assess your cognitive abilities, identify any areas of concern, and develop a personalized care plan to help improve your mental function.

362 services233 patients

Measurement of brain wave activity (eeg), digital analysis 95957

The measurement of brain wave activity, or EEG, involves recording and analyzing electrical signals from your brain. Small sensors are placed on the scalp to capture these signals. This digital analysis helps in diagnosing conditions like epilepsy or sleep disorders.

131 services68 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

84 services36 patients

Psychiatric diagnostic evaluation with medical services 90792

A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.

33 services33 patients

Psychotherapy, 45 minutes 90834

Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.

33 services14 patients

Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment 99453

Remote monitoring of physiologic parameters involves using special equipment to track vital signs like heart rate and blood pressure from a distance. The initial set-up includes installing the device and teaching the patient how to use it correctly for accurate readings.

22 services22 patients

Hospital Affiliations CMS Care Compare 2

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

Missouri Delta Medical Center

Acute Care Hospitals · Sikeston, MO

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260113

Location1008 North Main StSikeston, MO 63801 · Scott County

Emergency services Birthing friendly

Saint Francis Medical Center

Acute Care Hospitals · Cape Girardeau, MO

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260183

Location211 St Francis DrCape Girardeau, MO 63703 · Cape Girardeau County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63801 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

$81.64 typical visit price

range $52.28 – $161.24

Typical copayment $20.41 (range $13.07 – $40.31)

Most-billed visit code 99203

Established Patient

$93.24 typical visit price

range $16.30 – $131.05

Typical copayment $23.31 (range $4.07 – $32.76)

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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

4 suppliers30 claims30 services$116.84 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

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

TRI-COUNTY COMMUNITY CLINIC, LLC

Nurse Practitioner (Psychiatric/Mental Health)

1226 LINN ST STE F
SIKESTON, MO 63801

Scott County (573) 391-8031

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 Ladonna Williams's NPI number?

The NPI number for Ladonna Williams is 1861826968. It was assigned to this individual provider in the NPPES registry on August 26, 2013.

Where is Ladonna Williams located?

Ladonna Williams practices at 1226 Linn St Ste F, Sikeston, MO 63801. The listed phone number is (573) 391-8031.

What is Ladonna Williams's specialty?

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

Is Ladonna Williams enrolled in Medicare?

Yes. Ladonna Williams 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.

Which organizations bill Medicare for Ladonna Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ladonna Williams reassigns Medicare benefits to 3 organizations: Tri-County Community Clinic, LLC (Sikeston, MO), Missouri Delta Medical Center (Sikeston, MO) and Owl Adventures LLC (Hayti, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ladonna Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ladonna Williams accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Ladonna Williams 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 Ladonna Williams affiliated with any hospitals?

According to CMS data, Ladonna Williams is affiliated with Missouri Delta Medical Center and Saint Francis Medical Center.

When was this NPI record last updated?

The NPPES record for Ladonna Williams was last updated on October 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.