MISS MARGARET KATHERINE PROULX LMHC
NPI 1447829866
Counselor - Mental Health in Wilmington, DE
About Miss Margaret Katherine Proulx Lmhc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MISS MARGARET KATHERINE PROULX LMHC (NPI 1447829866) is an individual mental health provider in Wilmington, Delaware, licensed in New York (012868) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 (PECOS)
Miss Margaret Katherine Proulx Lmhc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Margaret Proulx reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Miami, FL 33130
- Reassigned Medicare billing, Connecticut, Delaware, Florida, Massachusetts and New York enrollments
- 613 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.
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 Margaret Proulx's NPI number?
The NPI number for Margaret Proulx is 1447829866. It was assigned to this individual provider in the NPPES registry on June 21, 2021.
Where is Margaret Proulx located?
Margaret Proulx practices at 3200 Kirkwood Hwy # 1163, Wilmington, DE 19808. The listed phone number is (352) 322-5478.
What is Margaret Proulx's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Margaret Proulx enrolled in Medicare?
Yes. Margaret Proulx is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Margaret Proulx's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Proulx reassigns Medicare benefits to Grow Healthcare Group PA (Miami, FL). 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 Margaret Proulx's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret Proulx accept?
Health plans from Anthem Blue Cross and Blue Shield, Cigna HealthCare of Florida, Inc., Cigna Healthcare, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) and 2 other insurers list Margaret Proulx 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 Margaret Proulx was last updated on May 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Miss Margaret Katherine Proulx, LMHC · NPI 1447829866
Mental Health provider in Wilmington, Delaware. Individual provider, active in the CMS NPPES registry since June 21, 2021.
## Identity
- **NPI:** 1447829866 (Entity type: Individual)
- **Enumerated:** June 21, 2021
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 012868 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 3200 KIRKWOOD HWY # 1163, Wilmington, DE 19808-6153
- **Phone:** (352) 322-5478
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Grow Healthcare Group PA (NPI 1245845932, Miami, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** May 5, 2026
- **Other identifiers:** Medicaid 07688737 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1447829866) · Data from the CMS NPPES public registry.