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MRS. MARY J VONTERSCH HANNO MSW LISW
NPI 1336207976
Social Worker - Clinical in Sioux City, IA

Active since December 05, 2006PECOS EnrolledAccepts Medicare Assignment
3133 FLOYD BLVD, SIOUX CITY, IA 51108(712) 239-0392(712) 239-0824 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mrs. Mary J Vontersch Hanno Msw Lisw NPPES

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

MRS. MARY J VONTERSCH HANNO MSW LISW (NPI 1336207976) is an individual clinical provider in Sioux City, Iowa, licensed in Iowa (762) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1985).

NPPES Registry Identity

NPI1336207976
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. MARY J VONTERSCH HANNOCredential: MSW LISW
Location Address3133 FLOYD BLVDSioux City, IA 51108
Mailing Address3133 Floyd BlvdSioux City, IA 51108 · (712) 239-0392 · Fax (712) 239-0824
Phone(712) 239-0392
Fax(712) 239-0824
Sole ProprietorNo
Medical School CMSOtherGraduated 1985
Enumeration DateDecember 5, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1336207976 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 · 762
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.
3133 FLOYD BLVD, Sioux City, IA 51108
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Other Identifiers 4

Other41938Bcbs
Medicare ID-Type UnspecifiedI3321IA
Medicaid073590NE
Medicaid0242461IA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, 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

Mrs. Mary J Vontersch Hanno Msw Lisw 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 ID4880586619
PECOS Enrollment IDI20040326000824
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 Reassignment

Medicare enrollment records show Mary Vontersch Hanno reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hanno Therapy Services Inc
0.1 mi
Clinical
3133 FLOYD BLVD
Sioux City, IA 51108
  • Reassigned Medicare billing, Iowa enrollment
NPI 1811234552 (712) 239-0392

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

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.

Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
190 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 51108 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.

PATRICK A. WALDING DC PC
Chiropractor
3133 FLOYD BLVD
SIOUX CITY, IA 51108
Woodbury County (712) 239-2700
HANNO THERAPY SERVICES INC
Social Worker (Clinical)
3133 FLOYD BLVD
SIOUX CITY, IA 51108
Woodbury County (712) 239-0392

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 Mary Vontersch Hanno's NPI number?

The NPI number for Mary Vontersch Hanno is 1336207976. It was assigned to this individual provider in the NPPES registry on December 5, 2006.

Where is Mary Vontersch Hanno located?

Mary Vontersch Hanno practices at 3133 Floyd Blvd, Sioux City, IA 51108. The listed phone number is (712) 239-0392.

What is Mary Vontersch Hanno's specialty?

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

Is Mary Vontersch Hanno enrolled in Medicare?

Yes. Mary Vontersch Hanno 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 organization bills Medicare for Mary Vontersch Hanno's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Vontersch Hanno reassigns Medicare benefits to Hanno Therapy Services Inc (Sioux City, IA). The 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 Mary Vontersch Hanno's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Vontersch Hanno accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Avera Health Plans and 5 other insurers list Mary Vontersch Hanno 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 Mary Vontersch Hanno was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.