MADISON MCNALLY DAHM MSW, LCSW
NPI 1700407905
Social Worker - Clinical in Willimantic, CT
About Madison Mcnally Dahm Msw, Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MADISON MCNALLY DAHM MSW, LCSW (NPI 1700407905) is an individual clinical provider in Willimantic, Connecticut, licensed in Connecticut (10327) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Madison Mcnally Dahm Msw, Lcsw 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 Madison Dahm reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mansfield Center, CT 06250
- Reassigned Medicare billing, Connecticut enrollment
- 200 clinicians in this Medicare group
Hartford, CT 06106
- Reassigned Medicare billing, Connecticut enrollment
- 1,921 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 3
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 06226 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WILLIMANTIC, CT 06226
WILLIMANTIC, CT 06226
WILLIMANTIC, CT 06226
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 Madison Dahm's NPI number?
The NPI number for Madison Dahm is 1700407905. It was assigned to this individual provider in the NPPES registry on April 29, 2020. The provider is also known as Madison Leigh Mcnally.
Where is Madison Dahm located?
Madison Dahm practices at 5 Founders St Ste 100, Willimantic, CT 06226. The listed phone number is (860) 423-9764.
What is Madison Dahm's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Madison Dahm enrolled in Medicare?
Yes. Madison Dahm 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 Madison Dahm's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Madison Dahm reassigns Medicare benefits to 2 organizations: Natchaug Hospital, Inc. (Mansfield Center, CT) and Hartford Healthcare Medical Group Specialists, PLLC (Hartford, 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 Madison Dahm's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Madison Dahm accept?
Health plans from Anthem Blue Cross and Blue Shield list Madison Dahm 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 Madison Dahm was last updated on March 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Madison Mcnally Dahm, MSW, LCSW · NPI 1700407905
Clinical provider in Willimantic, Connecticut. Individual provider, active in the CMS NPPES registry since April 29, 2020.
## Identity
- **NPI:** 1700407905 (Entity type: Individual)
- **Enumerated:** April 29, 2020
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 10327 (Connecticut)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5 FOUNDERS ST STE 100, Willimantic, CT 06226-2049
- **Phone:** (860) 423-9764 · **Fax:** (860) 423-3115
## 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): Natchaug Hospital, Inc. (NPI 1295811321, Mansfield Center, CT); Hartford Healthcare Medical Group Specialists, PLLC (NPI 1023584216, Hartford, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** March 22, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1700407905) · Data from the CMS NPPES public registry.