MARISSA ALEXANDRA DUNCAN LPC
NPI 1134995152
Counselor - Professional in Port Washington, WI
About Marissa Alexandra Duncan Lpc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARISSA ALEXANDRA DUNCAN LPC (NPI 1134995152) is an individual professional provider in Port Washington, Wisconsin, licensed in Wisconsin (11237-125) and active in the NPI registry since November 2023. She is enrolled in Medicare PECOS, maintains a secondary practice location in Waukesha, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Marissa Alexandra Duncan Lpc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Marissa Duncan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brookfield, WI 53005
- Reassigned Medicare billing, Wisconsin enrollment
- 556 clinicians in this Medicare group
Waukesha, WI 53188
- Reassigned Medicare billing, Wisconsin enrollment
- 12 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORT WASHINGTON, WI 53074
PORT WASHINGTON, WI 53074
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 Marissa Duncan's NPI number?
The NPI number for Marissa Duncan is 1134995152. It was assigned to this individual provider in the NPPES registry on November 30, 2023.
Where is Marissa Duncan located?
Marissa Duncan practices at 1317 W Grand Ave Ste 6, Port Washington, WI 53074. The listed phone number is (262) 427-8905.
What is Marissa Duncan's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.
Is Marissa Duncan enrolled in Medicare?
Yes. Marissa Duncan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Marissa Duncan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Duncan reassigns Medicare benefits to 2 organizations: Cornerstone Counseling Services, Inc (Brookfield, WI) and Family Service Agency Of Waukesha County Inc (Waukesha, WI). Each 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 Marissa Duncan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marissa Duncan accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), HealthPartners, Network Health and Quartz and 1 other insurer list Marissa Duncan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marissa Duncan was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.
# Marissa Alexandra Duncan, LPC · NPI 1134995152
Professional provider in Port Washington, Wisconsin. Individual provider, active in the CMS NPPES registry since November 30, 2023.
## Identity
- **NPI:** 1134995152 (Entity type: Individual)
- **Enumerated:** November 30, 2023
- **Primary specialty:** Counselor - Professional · taxonomy 101YP2500X
- **State license:** 11237-125 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1317 W GRAND AVE STE 6, Port Washington, WI 53074-2075
- **Phone:** (262) 427-8905
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Cornerstone Counseling Services, Inc (NPI 1033127246, Brookfield, WI); Family Service Agency Of Waukesha County Inc (NPI 1568404671, Waukesha, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** September 15, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1134995152) · Data from the CMS NPPES public registry.