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MARGARET M HAMMES MSW LISW
NPI 1144497405
Social Worker - Clinical in Decorah, IA

Active since May 14, 2008PECOS Enrolled
314 W. MAIN ST., DECORAH, IA 52101(563) 387-7433 Get Directions Write a Review

NPPES record last updated: January 22, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Margaret M Hammes Msw Lisw NPPES

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

MARGARET M HAMMES MSW LISW (NPI 1144497405) is an individual clinical provider in Decorah, Iowa, licensed in Iowa (007383) and active in the NPI registry since May 2008. She is enrolled in Medicare PECOS, maintains a secondary practice location in Oak Creek, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1144497405
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMARGARET M HAMMESCredential: MSW LISW
Location Address314 W. MAIN ST.Decorah, IA 52101
Mailing Address411 N. Jefferson, Po Box 369Calmar, IA 52132 · (563) 387-7433
Phone(563) 387-7433
Sole ProprietorYes
Medical School CMSOtherGraduated 1999
Enumeration DateMay 14, 2008
Last NPPES UpdateJanuary 22, 2025
NPPES CertifiedJanuary 22, 2025
✔ NPI 1144497405 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in IA · 007383✔ Licensed in WI · 11031-123
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.
314 W. MAIN ST., Decorah, IA 52101
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Other Names 1

Professional Name (2)Meg Hammes Msw Lisw

Secondary Practice Location 1

Location 16414 S Howell Ave Ste BOak Creek, WI 53154-1104 · Phone (563) 387-7433 · Fax (563) 387-2662

Other Identifiers 1

Medicaid43584800WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Oscar Insurance Company, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Margaret M Hammes Msw Lisw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7012372121
PECOS Enrollment IDI20230426001294
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 52101 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.

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 Margaret Hammes's NPI number?

The NPI number for Margaret Hammes is 1144497405. It was assigned to this individual provider in the NPPES registry on May 14, 2008. The provider is also known as Meg Hammes Msw Lisw.

Where is Margaret Hammes located?

Margaret Hammes practices at 314 W. Main St., Decorah, IA 52101. The listed phone number is (563) 387-7433.

What is Margaret Hammes's specialty?

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

Is Margaret Hammes enrolled in Medicare?

Yes. Margaret Hammes is registered in the Medicare PECOS enrollment system.

What insurance does Margaret Hammes accept?

Health plans from Medica, Oscar Insurance Company and UnitedHealthcare list Margaret Hammes 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.

When was this NPI record last updated?

The NPPES record for Margaret Hammes was last updated on January 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.