ELEFTHERIA TSAVOUSSIS PMHCNS-BC
NPI 1821073586
Clinical Nurse Specialist - Psychiatric/Mental Health, Adult in Waltham, MA
About Eleftheria Tsavoussis Pmhcns-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELEFTHERIA TSAVOUSSIS PMHCNS-BC (NPI 1821073586) is an individual psychiatric/mental health, adult provider in Waltham, Massachusetts, licensed in Massachusetts (175264) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (2004).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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
Eleftheria Tsavoussis Pmhcns-bc 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 Eleftheria Tsavoussis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Waltham, MA 02451
- Reassigned Medicare billing, Massachusetts enrollment
- 11 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 02451 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Eleftheria Tsavoussis's NPI number?
The NPI number for Eleftheria Tsavoussis is 1821073586. It was assigned to this individual provider in the NPPES registry on December 14, 2005.
Where is Eleftheria Tsavoussis located?
Eleftheria Tsavoussis practices at 210 Bear Hill Road Suite 202, Waltham, MA 02451. The listed phone number is (781) 966-0070.
What is Eleftheria Tsavoussis's specialty?
The primary specialty registered for this NPI is Clinical Nurse Specialist, specializing in Psychiatric/Mental Health, Adult, with taxonomy code 364SP0809X.
Is Eleftheria Tsavoussis enrolled in Medicare?
Yes. Eleftheria Tsavoussis 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 Eleftheria Tsavoussis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eleftheria Tsavoussis reassigns Medicare benefits to Waltham Behavioral Health LLC (Waltham, 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 Eleftheria Tsavoussis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Eleftheria Tsavoussis accept?
Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Eleftheria Tsavoussis 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 Eleftheria Tsavoussis was last updated on July 31, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Eleftheria Tsavoussis, PMHCNS-BC · NPI 1821073586
Psychiatric/Mental Health, Adult physician in Waltham, Massachusetts. Individual provider, active in the CMS NPPES registry since December 14, 2005.
## Identity
- **NPI:** 1821073586 (Entity type: Individual)
- **Enumerated:** December 14, 2005
- **Primary specialty:** Clinical Nurse Specialist - Psychiatric/Mental Health, Adult · taxonomy 364SP0809X
- **State license:** 175264 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 210 BEAR HILL ROAD, SUITE 202, Waltham, MA 02451
- **Phone:** (781) 966-0070 · **Fax:** (781) 915-0755
## 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:** Waltham Behavioral Health LLC (NPI 1427453000, Waltham, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Boston University School Of Medicine, class of 2004
## Record status
- **NPPES last updated:** July 31, 2015
- **Other identifiers:** Medicare ID-Type Unspecified NP3288 (MA); Medicare UPIN P33046 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1821073586) · Data from the CMS NPPES public registry.