MARIELLE HELLERUD KHUEN FNP
NPI 1962002691
Nurse Practitioner - Family in Norwalk, CT
About Marielle Hellerud Khuen Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIELLE HELLERUD KHUEN FNP (NPI 1962002691) is an individual family provider in Norwalk, Connecticut, licensed in Connecticut (2020090994) and active in the NPI registry since October 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
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
Marielle Hellerud Khuen Fnp 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
3Medicare enrollment records show Marielle Khuen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Norwalk, CT 06851
- Reassigned Medicare billing, Connecticut enrollment
- 6 clinicians in this Medicare group
New Haven, CT 06519
- Reassigned Medicare billing, Connecticut enrollment
- 3,728 clinicians in this Medicare group
Hamden, CT 06518
- Reassigned Medicare billing, Connecticut enrollment
- 7 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.
Areas of Expertise CMS Part B claims 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06855 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Marielle Khuen's NPI number?
The NPI number for Marielle Khuen is 1962002691. It was assigned to this individual provider in the NPPES registry on October 30, 2020.
Where is Marielle Khuen located?
Marielle Khuen practices at 39 Fifth St, Norwalk, CT 06855. The listed phone number is (178) 145-4677.
What is Marielle Khuen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Marielle Khuen enrolled in Medicare?
Yes. Marielle Khuen 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 Marielle Khuen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marielle Khuen reassigns Medicare benefits to 3 organizations: Robert L. Weiss, MD, PC (Norwalk, CT), Yale University (New Haven, CT) and Ear Nose And Throat Specialists Of Ct PC (Hamden, CT). 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 Marielle Khuen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marielle Khuen accept?
Health plans from Anthem Blue Cross and Blue Shield list Marielle Khuen 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 Marielle Khuen was last updated on October 30, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Marielle Hellerud Khuen, FNP · NPI 1962002691
Family physician in Norwalk, Connecticut. Individual provider, active in the CMS NPPES registry since October 30, 2020.
## Identity
- **NPI:** 1962002691 (Entity type: Individual)
- **Enumerated:** October 30, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 2020090994 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 39 FIFTH ST, Norwalk, CT 06855-2402
- **Phone:** (178) 145-4677
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Robert L. Weiss, MD, PC (NPI 1174724199, Norwalk, CT); Yale University (NPI 1124148887, New Haven, CT); Ear Nose And Throat Specialists Of Ct PC (NPI 1013058866, Hamden, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** October 30, 2020
---
Source: [NPI Profile](https://npiprofile.com/npi/1962002691) · Data from the CMS NPPES public registry.