Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Mark Joseph Mohapp, LCSW, CSAC

Clinical Social Worker in Lake Geneva, WI · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1861487647

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Registry record

Entity type Individual (Type 1)

Name Mr. Mark Joseph Mohapp

Credential LCSW, CSAC

Sex Male

Practice address Lake Geneva, WI, 53147

Phone (262) 215-0826

Enumeration date Sep 16, 2005

Last updated in NPPES Mar 13, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 2019 (WI) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 116-123 (WI) Primary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149.004395 (IL) Secondary

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 2019-132 (WI) Secondary

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 7099-135 (WI) Secondary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
137909000	Other	-	MAGELLAN BID HEALTH
39269100	Other	WI	CENPATICO
39269100	Other	WI	HIRSP
10670	Other	WI	DEAN CARE
60158	Other	-	CIGNA
A917403	Other	-	VALUE OPTIONS
39269100	Medicaid	WI	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Mark Mohapp?

Mark Mohapp is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-13.