MARY KATHERINE KOSCIUSKO MD
NPI 1922701960
Emergency Medicine in Worcester, MA
About Mary Katherine Kosciusko Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY KATHERINE KOSCIUSKO MD (NPI 1922701960) is an individual emergency medicine provider in Worcester, Massachusetts, licensed in Massachusetts (1026041) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and maintains a secondary practice location in Burlington.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Mary Katherine Kosciusko Md 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 Mary Kosciusko reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Umass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01655 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WORCESTER, MA 01655
WORCESTER, MA 01655
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 Mary Kosciusko's NPI number?
The NPI number for Mary Kosciusko is 1922701960. It was assigned to this individual provider in the NPPES registry on March 27, 2023.
Where is Mary Kosciusko located?
Mary Kosciusko practices at 55 Lake Ave N, Worcester, MA 01655. The listed phone number is (508) 421-1401.
What is Mary Kosciusko's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mary Kosciusko enrolled in Medicare?
Yes. Mary Kosciusko 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 Mary Kosciusko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Kosciusko reassigns Medicare benefits to Umass Memorial Medical Group Inc (Worcester, 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 Mary Kosciusko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Kosciusko accept?
Health plans from Taro Health list Mary Kosciusko 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.
Is Mary Kosciusko affiliated with any hospitals?
According to CMS data, Mary Kosciusko is affiliated with Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Mary Kosciusko was last updated on May 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Mary Katherine Kosciusko, MD · NPI 1922701960
Emergency Medicine physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since March 27, 2023.
## Identity
- **NPI:** 1922701960 (Entity type: Individual)
- **Enumerated:** March 27, 2023
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 1026041 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 55 LAKE AVE N, Worcester, MA 01655-0002
- **Phone:** (508) 421-1401 · **Fax:** (508) 421-1490
## 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:** Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 2023
## Record status
- **NPPES last updated:** May 1, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1922701960) · Data from the CMS NPPES public registry.