Niki Plessas, NP
NPI 1881341691 · Nurse Practitioner · Worcester, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Niki Plessas, NP is a Nurse Practitioner provider in Worcester, MA (NPI 1881341691).
Provider details
- NPI number
- 1881341691
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- RN2321741 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
103 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Critical Care, Each Additional 30 Minutes99292 | 56 | $86 |
| Critical Care, First 30-74 Minutes99291 | 47 | $170 |
Typical Medicare-allowed amounts for these services range $86–$170 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 119 Belmont StWorcester, MA 01605-2903Phone: (774) 443-7552
Registry dates
- Enumerated
- 2022-03-02
- Last updated
- 2023-09-15
- Certified
- 2023-09-15
Frequently asked questions
- What is Niki Plessas's NPI number?
- Niki Plessas's National Provider Identifier (NPI) is 1881341691, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Niki Plessas's specialty?
- Niki Plessas is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Niki Plessas located?
- Niki Plessas's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.
- What is Niki Plessas's phone number?
- The practice phone number listed in the NPPES registry for Niki Plessas is (774) 443-7552.
- Does Niki Plessas accept Medicare?
- Niki Plessas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Niki Plessas's NPI active?
- Yes — Niki Plessas's NPI (1881341691) is active in the NPPES registry as of the last update on 2023-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.