OASIS BEHAVIORAL HEALTH LLC
NPI 1154808301
Nurse Practitioner - Psychiatric/Mental Health in North Chelmsford, MA
About Oasis Behavioral Health Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OASIS BEHAVIORAL HEALTH LLC (NPI 1154808301), doing business as Chelmsford Behavioral Health Llc, is a healthcare organization registered as a psychiatric/mental health in North Chelmsford, Massachusetts and active in the NPI registry since July 2018. The organization lists Debbie Peters, Office Manager, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Oasis Behavioral Health Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
5Medicare enrollment records show 5 clinicians reassign Medicare billing to Oasis Behavioral Health LLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.
Clinicians, nearest first (5)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Oasis Behavioral Health LLC's NPI number?
The NPI number for Oasis Behavioral Health LLC is 1154808301. It was assigned to this organization in the NPPES registry on July 20, 2018. The provider is doing business as Chelmsford Behavioral Health LLC.
Where is Oasis Behavioral Health LLC located?
Oasis Behavioral Health LLC is located at 73 Princeton St Ste 304, North Chelmsford, MA 01863. The listed phone number is (978) 455-3141.
What is Oasis Behavioral Health LLC's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Oasis Behavioral Health LLC enrolled in Medicare?
Yes. Oasis Behavioral Health LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Oasis Behavioral Health LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 3 Medicare specialties reassign their Medicare billing to Oasis Behavioral Health LLC. A 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 the clinician's services. The largest specialties are Nurse Practitioner (3), Certified Clinical Nurse Specialist (CNS) (1) and Mental Health Counselor (1). Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Oasis Behavioral Health LLC accept?
Health plans from Anthem Blue Cross and Blue Shield list Oasis Behavioral Health LLC 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 Oasis Behavioral Health LLC was last updated on October 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Oasis Behavioral Health Llc · NPI 1154808301
Psychiatric/Mental Health organization in North Chelmsford, Massachusetts. Organization record, active in the CMS NPPES registry since July 20, 2018.
## Identity
- **NPI:** 1154808301 (Entity type: Organization)
- **Enumerated:** July 20, 2018
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **Also known as:** Chelmsford Behavioral Health LLC (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Debbie Peters, OFFICE MANAGER
## Practice location
- **Address:** 73 PRINCETON ST STE 304, North Chelmsford, MA 01863-1581
- **Phone:** (978) 455-3141 · **Fax:** (978) 455-3069
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 5 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (3), Certified Clinical Nurse Specialist (CNS) (1), Mental Health Counselor (1); 1 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 27, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1154808301) · Data from the CMS NPPES public registry.