MADELINE MARIE WILLIAMS LMSW
NPI 1215512041
Social Worker - Clinical in West Des Moines, IA

Active since March 12, 2021PECOS EnrolledAccepts Medicare Assignment
1300 WOODLAND AVE, WEST DES MOINES, IA 50265(515) 280-3860(515) 823-2683 Get Directions Write a Review

NPPES record last updated: July 12, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 12, 2023, Mar 12, 2021 (2 updates tracked since 2021).

About Madeline Marie Williams Lmsw NPPES

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

MADELINE MARIE WILLIAMS LMSW (NPI 1215512041) is an individual clinical provider in West Des Moines, Iowa, licensed in Iowa (101227) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Des Moines Iowa Methodist Medi, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1215512041
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMADELINE MARIE WILLIAMSCredential: LMSW
Location Address1300 WOODLAND AVEWest Des Moines, IA 50265-2306
Mailing Address1300 Woodland AveWest Des Moines, IA 50265-2306 · (515) 280-3860 · Fax (515) 823-2683
Fax(515) 823-2683
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 12, 2021
Last NPPES UpdateJuly 12, 20232 updates tracked since enumeration
NPPES CertifiedMarch 29, 2023
✔ NPI 1215512041 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in IA · 101227
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedSocial WorkerTaxonomy 104100000X · License 101227 (IA)
1300 WOODLAND AVE, West Des Moines, IA 50265

Accepted 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

Madeline Marie Williams Lmsw 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 ID547635666
PECOS Enrollment IDI20230403002162
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

2

Medicare enrollment records show Madeline Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

General Practice
1776 W LAKES PKWY STE 400
West Des Moines, IA 50266
  • Reassigned Medicare billing, Iowa enrollment
  • 1,506 clinicians in this Medicare group
Mental Health
6000 UNIVERSITY AVE STE 200
West Des Moines, IA 50266
  • Reassigned Medicare billing, Iowa enrollment
  • 545 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare

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

Unitypoint Health - Des Moines Iowa Methodist Medi

Acute Care Hospitals · Des Moines, IA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160082
Location1200 Pleasant StreetDes Moines, IA 50309 · Polk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50265 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
$0.00 typical visit price
range $52.96 – $161.40
Typical copayment $0.00 (range $13.24 – $40.35)
Most-billed visit code NA
Established Patient
$66.36 typical visit price
range $16.91 – $131.98
Typical copayment $16.59 (range $4.22 – $32.99)
Most-billed visit code 99213
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 20

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

Family Medicine
1300 WOODLAND AVE
WEST DES MOINES, IA 50265
Counselor (Mental Health)
1300 WOODLAND AVE
WEST DES MOINES, IA 50265
Nurse Practitioner (Family)
1300 WOODLAND AVE
WEST DES MOINES, IA 50265
Counselor (Addiction (Substance Use Disorder))
1300 WOODLAND AVE
WEST DES MOINES, IA 50265
Counselor (Mental Health)
1300 WOODLAND AVE
WEST DES MOINES, IA 50265
Counselor (Addiction (Substance Use Disorder))
1300 WOODLAND AVE
WEST DES MOINES, IA 50265
Nurse Practitioner (Psychiatric/Mental Health)
1300 WOODLAND AVE
WEST DES MOINES, IA 50265
Counselor (Addiction (Substance Use Disorder))
1300 WOODLAND AVE
WEST DES MOINES, IA 50265

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 Madeline Williams's NPI number?

The NPI number for Madeline Williams is 1215512041. It was assigned to this individual provider in the NPPES registry on March 12, 2021.

Where is Madeline Williams located?

Madeline Williams practices at 1300 Woodland Ave, West Des Moines, IA 50265. The listed phone number is (515) 280-3860.

What is Madeline Williams's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Madeline Williams enrolled in Medicare?

Yes. Madeline 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 Madeline Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Madeline Williams reassigns Medicare benefits to 2 organizations: Iowa Physicians Clinic Medical Foundation (West Des Moines, IA) and Central Iowa Hospital Corporation (West Des Moines, IA). 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 Madeline Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Madeline Williams accept?

Health plans from UnitedHealthcare and Wellmark Health Plan of Iowa, Inc. list Madeline 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 Madeline Williams affiliated with any hospitals?

According to CMS data, Madeline Williams is affiliated with Unitypoint Health - Des Moines Iowa Methodist Medi.

When was this NPI record last updated?

The NPPES record for Madeline Williams was last updated on July 12, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.