NIKI PLESSAS NP
NPI 1881341691
Nurse Practitioner in Worcester, MA
About Niki Plessas Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NIKI PLESSAS NP (NPI 1881341691) is an individual nurse practitioner in Worcester, Massachusetts, licensed in Massachusetts (RN2321741) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS, is affiliated with Milford Regional Medical Center, and maintains a secondary practice location in Worcester.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Niki Plessas Np 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 Niki Plessas 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.
Areas of Expertise CMS Part B claims 2
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Milford Regional Medical Center
Acute Care Hospitals · Milford, MAUmass 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 Niki Plessas's NPI number?
The NPI number for Niki Plessas is 1881341691. It was assigned to this individual provider in the NPPES registry on March 2, 2022.
Where is Niki Plessas located?
Niki Plessas practices at 55 Lake Ave N, Worcester, MA 01655. The listed phone number is (774) 443-7552.
What is Niki Plessas's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Niki Plessas enrolled in Medicare?
Yes. Niki Plessas 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 Niki Plessas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Niki Plessas 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 Niki Plessas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Niki Plessas affiliated with any hospitals?
According to CMS data, Niki Plessas is affiliated with Milford Regional Medical Center and Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Niki Plessas was last updated on September 15, 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.
# Niki Plessas, NP · NPI 1881341691
Nurse Practitioner physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since March 2, 2022.
## Identity
- **NPI:** 1881341691 (Entity type: Individual)
- **Enumerated:** March 2, 2022
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** RN2321741 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 LAKE AVE N, Worcester, MA 01655-0002
- **Phone:** (774) 443-7552
## 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:** Other, class of 2022
## Record status
- **NPPES last updated:** September 15, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1881341691) · Data from the CMS NPPES public registry.