OLIVIA BASS NP
NPI 1669209664
Nurse Practitioner - Family in Watertown, MA
About Olivia Bass Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OLIVIA BASS NP (NPI 1669209664) is an individual family provider in Watertown, Massachusetts, licensed in Massachusetts (RN2286284) and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
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
Olivia Bass 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 Olivia Bass reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Watertown, MA 02472
- Reassigned Medicare billing, Massachusetts enrollment
- 1,317 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02472 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.
WATERTOWN, MA 02472
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 Olivia Bass's NPI number?
The NPI number for Olivia Bass is 1669209664. It was assigned to this individual provider in the NPPES registry on September 16, 2024.
Where is Olivia Bass located?
Olivia Bass practices at 485 Arsenal St, Watertown, MA 02472. The listed phone number is (617) 972-5230.
What is Olivia Bass's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Olivia Bass enrolled in Medicare?
Yes. Olivia Bass 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 Olivia Bass's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Olivia Bass reassigns Medicare benefits to Atrius Health, Inc. (Watertown, 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 Olivia Bass's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Olivia Bass was last updated on September 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Olivia Bass, NP · NPI 1669209664
Family physician in Watertown, Massachusetts. Individual provider, active in the CMS NPPES registry since September 16, 2024.
## Identity
- **NPI:** 1669209664 (Entity type: Individual)
- **Enumerated:** September 16, 2024
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** RN2286284 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 485 ARSENAL ST, Watertown, MA 02472-5091
- **Phone:** (617) 972-5230
## 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:** Atrius Health, Inc. (NPI 1043366537, Watertown, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** September 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1669209664) · Data from the CMS NPPES public registry.