Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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MS. Katharine Jean Demny, LLMSW

Individual provider Clinical Social Worker · NPI 1750660510

MS. Katharine Jean Demny, LLMSW is a Clinical Social Worker in Holland, Michigan. Qualified in 2011, 15 years ago. Practices with West Michigan Community Mental Health System, a 14-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
15
Licensed in
MI
In the registry since
2011
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Practice location Address checks out

12265 James St
Holland, MI 49424-8613 Not confirmed with CMS for 15 years — call before visiting
Phone: (616) 494-5448
Fax: (616) 393-5687
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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 6801093162 (MI)

Record details

NPI number1750660510
Entity typeIndividual (Type 1)
GenderFemale
Credentials LLMSW
Sole proprietorNo
NPI enumeratedAugust 11, 2011
Last updated in NPPESAugust 11, 2011

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice West Michigan Community Mental Health System — 14 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients17
Services billed 191 a service is one billed item, such as a visit, a test or a procedure
Average patient age54

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.

Colleagues at West Michigan Community Mental Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 14 clinicians in the practice; 10 are shown here.

Other providers in Holland