NPPES file of Aug 9, 2026

Marissa Alexandra Duncan, LPC

Professional Counselor · Port Washington, WI

Marissa Alexandra Duncan, LPC is a professional counselor with a practice address in Port Washington, Wisconsin, and NPI 1134995152, issued on Nov 30, 2023. Check the license (Wisconsin 11237-125, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134995152
Name
Marissa Alexandra Duncan
Credential
LPC
Primary taxonomy
Professional Counselor 101YP2500X
License number
11237-125 WI
Self-reported in NPPES; status is on the state search
Practice location
1317 W Grand Ave Ste 6, Port Washington, WI 53074
Phone
(262) 427-8905
Enumerated
Nov 30, 2023
Record last updated
Sep 15, 2025
Medicare enrollment
Enrolled (PECOS I20240829001472); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1317 W Grand Ave Ste 6

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shannon Broeker, LPCProfessional Counselor1386488955
  2. Jessica Clayborn, LPCProfessional Counselor1740869155
  3. Jamie Freund, LPCProfessional Counselor1366956682
  4. Thomas Galten, LCSWClinical Social Worker1962525683
  5. Kallyn Heiges, LPCProfessional Counselor1205608494
  6. Octavia Manuel-Wright, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1598950396

Verify Marissa Alexandra Duncan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 11237-125    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Wisconsin license search

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Bills Medicare through one group practice

  1. Cornerstone Counseling Services IncFranklin, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

24 professional counselor records list a practice address in Port Washington

They are 24 of the 228 NPPES records with a practice address in Port Washington, and 4,459 professional counselor records in Wisconsin.

All 24 in Port Washington → All 4,459 in Wisconsin → Every provider in Port Washington →

Other professional counselor records in Wisconsin

  1. Jo Nel (christianson) PreyOshkosh, WI1114074499
  2. Muneebah Abdullah, LPCMilwaukee, WI1811369762
  3. Sara Abdulrasool, PROFESSIONAL COUNSELGlendale, WI1568093284
  4. Jessica Abegglen, LPCFitchburg, WI1124431390
  5. Wendy Abel, LPCJanesville, WI1730233024
  6. Theresa Abelew, LPC, ATR-PMilwaukee, WI1104500545
  7. Robert Abercrombie, MS. LPCMilwaukee, WI1487105524
  8. Jennifer Abild, MA, LPCGreenfield, WI1497367619
  9. Sadie AblerMilwaukee, WI1881159614
  10. Pamela Abrahamsen, MS, LPC-ITFort Atkinson, WI1538417670

Common questions

What is Marissa Alexandra Duncan, LPC's NPI number?

Marissa Alexandra Duncan, LPC's National Provider Identifier (NPI) is 1134995152, issued on Nov 30, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Alexandra Duncan, LPC located?

The NPPES record lists a practice address at 1317 W Grand Ave Ste 6, Port Washington, WI, 53074. Phone: (262) 427-8905. Providers update this record themselves, so call before visiting.

How can I verify Marissa Alexandra Duncan, LPC's license?

NPPES lists Wisconsin license number 11237-125, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.