Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mrs. Mary J Vontersch Hanno, MSWLISW

Individual provider Clinical Social Worker · NPI 1336207976

Mrs. Mary J Vontersch Hanno, MSWLISW is a Clinical Social Worker in Sioux City, Iowa. Qualified in 1985, 41 years ago. Accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
41
Licensed in
IA
In the registry since
2006
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Practice location Address checks out

3133 Floyd Blvd
Sioux City, IA 51108 Not confirmed with CMS for 19 years — call before visiting
Phone: (712) 239-0392
Fax: (712) 239-0824
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 762 (IA)

Record details

NPI number1336207976
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSWLISW
Sole proprietorNo
NPI enumeratedDecember 5, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1985 (41 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients15
Services billed 205 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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