MARGARET LISA JOHNSON LAT, ATC
NPI 1891472817
Specialist/Technologist - Athletic Trainer in South Dennis, MA
About Margaret Lisa Johnson Lat, Atc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET LISA JOHNSON LAT, ATC (NPI 1891472817) is an individual athletic trainer provider in South Dennis, Massachusetts, licensed in Massachusetts (ATL3441) and active in the NPI registry since June 2023. She is a graduate of Other (2025).
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
Margaret Lisa Johnson Lat, Atc 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 Reassignment
Medicare enrollment records show Margaret Johnson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Woburn, MA 01801
- Reassigned Medicare billing, Massachusetts enrollment
- 220 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 Johnson's NPI number?
The NPI number for Margaret Johnson is 1891472817. It was assigned to this individual provider in the NPPES registry on June 30, 2023.
Where is Margaret Johnson located?
Margaret Johnson practices at 40 Prince Way, South Dennis, MA 02660. The listed phone number is (774) 268-1920.
What is Margaret Johnson's specialty?
The primary specialty registered for this NPI is Specialist/Technologist, specializing in Athletic Trainer, with taxonomy code 2255A2300X.
Is Margaret Johnson enrolled in Medicare?
Yes. Margaret Johnson 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 organization bills Medicare for Margaret Johnson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Johnson reassigns Medicare benefits to Proex Physical Therapy, LLC (Woburn, MA). 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 Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret Johnson accept?
Health plans from Anthem Blue Cross and Blue Shield list Margaret Johnson 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 Johnson was last updated on June 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Margaret Lisa Johnson, LAT, ATC · NPI 1891472817
Athletic Trainer provider in South Dennis, Massachusetts. Individual provider, active in the CMS NPPES registry since June 30, 2023.
## Identity
- **NPI:** 1891472817 (Entity type: Individual)
- **Enumerated:** June 30, 2023
- **Primary specialty:** Specialist/Technologist - Athletic Trainer · taxonomy 2255A2300X
- **State license:** ATL3441 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 40 PRINCE WAY, South Dennis, MA 02660-1803
- **Phone:** (774) 268-1920
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Proex Physical Therapy, LLC (NPI 1831190453, Woburn, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** June 30, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1891472817) · Data from the CMS NPPES public registry.