DAY ONE
NPI 1164484093
Substance Abuse Rehabilitation Facility - Substance Abuse Treatment, Children in Windham, ME
About Day One NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAY ONE (NPI 1164484093) is a healthcare organization registered as a substance abuse treatment, children in Windham, Maine and active in the NPI registry since April 2006. The organization holds a CLIA Waiver certificate valid through December 28, 2026, maintains a secondary practice location in Biddeford, and lists Rachel Goodine, Billing, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 8
Secondary Practice Location 1
Other Identifiers 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)
Day One is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
14Medicare enrollment records show 14 clinicians reassign Medicare billing to Day One, which bills Medicare for the services they deliver. Of these, 7 practice at this address. They are listed nearest first.
Clinicians by Medicare Specialty 5
Clinicians, nearest first (14)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 20D2123721
Day One · Windham, MEFrequently 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 Day One's NPI number?
The NPI number for Day One is 1164484093. It was assigned to this organization in the NPPES registry on April 5, 2006.
Where is Day One located?
Day One is located at 86 Tandberg Trl, Windham, ME 04062. The listed phone number is (207) 893-0386.
What is Day One's specialty?
The primary specialty registered for this NPI is Substance Abuse Rehabilitation Facility, specializing in Substance Abuse Treatment, Children, with taxonomy code 3245S0500X.
Is Day One enrolled in Medicare?
Yes. Day One is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Day One?
According to the CMS Revalidation Reassignment List (October 2026 release), 14 clinicians in 5 Medicare specialties reassign their Medicare billing to Day One. 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 Clinical Social Worker (8), Nurse Practitioner (3) and Internal Medicine (1). Of these, 7 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Day One hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 20D2123721) is associated with this NPI, valid through December 28, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Day One accept?
Health plans from Anthem Blue Cross and Blue Shield list Day One 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 Day One was last updated on April 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Day One · NPI 1164484093
Substance Abuse Treatment, Children organization in Windham, Maine. Organization record, active in the CMS NPPES registry since April 5, 2006.
## Identity
- **NPI:** 1164484093 (Entity type: Organization)
- **Enumerated:** April 5, 2006
- **Primary specialty:** Substance Abuse Rehabilitation Facility - Substance Abuse Treatment, Children · taxonomy 3245S0500X
- **Organization subpart:** No
- **Authorized official:** Rachel Goodine, BILLING
## Practice location
- **Address:** 86 TANDBERG TRL, Windham, ME 04062-5841
- **Phone:** (207) 893-0386 · **Fax:** (207) 893-0286
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 14 clinicians in 5 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Clinical Social Worker (8), Nurse Practitioner (3), Internal Medicine (1); 7 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 11, 2025
- **Other identifiers:** Medicaid 1164484093 (ME)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1164484093) · Data from the CMS NPPES public registry.