1. Home
  2. Directory
  3. Iowa
  4. Fairfield
  5. Social Worker
  6. NPI Profile

CLAUDIA MAST LMSW
NPI 1194296905
Social Worker - Clinical in Fairfield, IA

Active since December 06, 2018PECOS Enrolled
301 W BURLINGTON, FAIRFIELD, IA 52556(641) 472-5771 Get Directions Write a Review

NPPES record last updated: May 19, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 19, 2026, Dec 6, 2018 (2 updates tracked since 2018).

About Claudia Mast Lmsw NPPES

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

CLAUDIA MAST LMSW (NPI 1194296905) is an individual clinical provider in Fairfield, Iowa, licensed in Iowa (008140) and active in the NPI registry since December 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194296905
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameCLAUDIA MASTCredential: LMSW
Location Address301 W BURLINGTONFairfield, IA 52556-5255
Mailing Address301 W Burlington AveFairfield, IA 52556-3242 · (641) 472-5771
Phone(641) 472-5771
Sole ProprietorYes
Enumeration DateDecember 6, 2018
Last NPPES UpdateMay 19, 20262 updates tracked since enumeration
NPPES CertifiedMay 19, 2026
✔ NPI 1194296905 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in IA · 008140
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.
301 W BURLINGTON, Fairfield, IA 52556
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Providence Health Plan.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)

Claudia Mast Lmsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 52556 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 2

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

TRACY LIPTAK LISW
Social Worker (Clinical)
301 W BURLINGTON
FAIRFIELD, IA 52556
Jefferson County (641) 472-5771
SUZANNA MULLENNEAUX LMHC
Counselor (Mental Health)
301 W BURLINGTON
FAIRFIELD, IA 52556
Jefferson County (641) 472-5771

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 Claudia Mast's NPI number?

The NPI number for Claudia Mast is 1194296905. It was assigned to this individual provider in the NPPES registry on December 6, 2018.

Where is Claudia Mast located?

Claudia Mast practices at 301 W Burlington, Fairfield, IA 52556. The listed phone number is (641) 472-5771.

What is Claudia Mast's specialty?

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

Is Claudia Mast enrolled in Medicare?

Yes. Claudia Mast is registered in the Medicare PECOS enrollment system.

What insurance does Claudia Mast accept?

Health plans from Medica and Providence Health Plan list Claudia Mast 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 Claudia Mast was last updated on May 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.