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MR. MARK JOSEPH MOHAPP LCSW, CSAC
NPI 1861487647
Social Worker - Clinical in Lake Geneva, WI

Active since September 16, 2005PECOS Enrolled
1271 WISCONSIN ST, B, LAKE GENEVA, WI 53147(262) 215-0826 Get Directions Write a Review

NPPES record last updated: March 13, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mr. Mark Joseph Mohapp Lcsw, Csac NPPES

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

MR. MARK JOSEPH MOHAPP LCSW, CSAC (NPI 1861487647) is an individual clinical provider in Lake Geneva, Wisconsin, licensed in Wisconsin (116-123) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861487647
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMR. MARK JOSEPH MOHAPPCredential: LCSW, CSAC
Location Address1271 WISCONSIN ST, BLake Geneva, WI 53147-1748
Mailing Address1271 Wisconsin St, BLake Geneva, WI 53147-1748 · (262) 215-0826
Phone(262) 215-0826
Sole ProprietorYes
Enumeration DateSeptember 16, 2005
Last NPPES UpdateMarch 13, 2013
✔ NPI 1861487647 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in WI · 116-123✔ Licensed in IL · 149.004395
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.
Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X · License 2019 (WI), 2019-132 (WI), 7099-135 (WI)
1271 WISCONSIN ST, Lake Geneva, WI 53147
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Other Identifiers 7

Other39269100WI · Hirsp
Medicaid39269100WI
Other39269100WI · Cenpatico
Other137909000Magellan Bid Health
OtherA917403Value Options
Other10670WI · Dean Care
Other60158Cigna

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Mark Joseph Mohapp Lcsw, Csac is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Mark Mohapp reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mercy Health System Corporation
30 mi
Multi-Specialty
580 N WASHINGTON ST
Janesville, WI 53548
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,155 clinicians in this Medicare group
NPI 1598718603 (608) 741-7630

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, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
72 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53147 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 $53.90 – $163.24
Typical copayment $0.00 (range $13.47 – $40.81)
Most-billed visit code NA
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
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.

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 Mark Mohapp's NPI number?

The NPI number for Mark Mohapp is 1861487647. It was assigned to this individual provider in the NPPES registry on September 16, 2005.

Where is Mark Mohapp located?

Mark Mohapp practices at 1271 Wisconsin St B, Lake Geneva, WI 53147. The listed phone number is (262) 215-0826.

What is Mark Mohapp's specialty?

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

Is Mark Mohapp enrolled in Medicare?

Yes. Mark Mohapp is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Mohapp's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Mohapp reassigns Medicare benefits to Mercy Health System Corporation (Janesville, WI). 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 Mark Mohapp's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mark Mohapp was last updated on March 13, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.