Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Mark Joseph Mohapp, LCSW, CSAC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1861487647

Mr. Mark Joseph Mohapp, LCSW, CSAC is a Clinical Social Worker in Lake Geneva, Wisconsin. Qualified in 1989, 37 years ago. Practices with Mercy Health System Corporation, a 751-clinician group and accepts Medicare assignment. Licensed in Illinois and Wisconsin.

Years since qualifying
37
Licensed in
IL, WI
In the registry since
2005
Specialties on file
5
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

1271 Wisconsin St B
Lake Geneva, WI 53147-1748
Phone: (262) 215-0826
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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 116-123 (WI)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 2019 (WI)
Clinical Social Worker Taxonomy 1041C0700X · Licence 149.004395 (IL)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 2019-132 (WI)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 7099-135 (WI)

Record details

NPI number1861487647
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW , CSAC
Sole proprietorYes
NPI enumeratedSeptember 16, 2005
Last updated in NPPESMarch 13, 2013

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice Mercy Health System Corporation — 751 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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