MERCURY NEWCO INC
NPI 1174347850
Clinic/Center - Mental Health (Including Community Mental Health Center) in Boston, MA
About Mercury Newco Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MERCURY NEWCO INC (NPI 1174347850), doing business as Overstory Health, is a healthcare organization registered as a mental health (including community mental health center) in Boston, Massachusetts and active in the NPI registry since November 2024. The organization lists Morgan Matthews, Chief Growth Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 3
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)
Mercury Newco Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Mercury Newco Inc, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Mercury Newco Inc's NPI number?
The NPI number for Mercury Newco Inc is 1174347850. It was assigned to this organization in the NPPES registry on November 11, 2024. The provider is doing business as Overstory Health. The provider is also known as Overstory Health Inc, FKA Mercury NewCo Inc.
Where is Mercury Newco Inc located?
Mercury Newco Inc is located at 580 Harrison Ave Ste 2B, Boston, MA 02118. The listed phone number is (224) 622-5470.
What is Mercury Newco Inc's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.
Is Mercury Newco Inc enrolled in Medicare?
Yes. Mercury Newco Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mercury Newco Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Mercury Newco Inc. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Mercury Newco Inc accept?
Health plans from Harvard Pilgrim Health Care list Mercury Newco Inc 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 Mercury Newco Inc was last updated on January 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Mercury Newco Inc · NPI 1174347850
Mental Health (Including Community Mental Health Center) organization in Boston, Massachusetts. Organization record, active in the CMS NPPES registry since November 11, 2024.
## Identity
- **NPI:** 1174347850 (Entity type: Organization)
- **Enumerated:** November 11, 2024
- **Primary specialty:** Clinic/Center - Mental Health (Including Community Mental Health Center) · taxonomy 261QM0801X
- **Also known as:** Overstory Health (Doing Business As); Mercury NewCo Inc (Other Name); Overstory Health Inc, FKA Mercury NewCo Inc (Other Name)
- **Organization subpart:** No
- **Authorized official:** Morgan Matthews, CHIEF GROWTH OFFICER
## Practice location
- **Address:** 580 HARRISON AVE STE 2B, Boston, MA 02118-2440
- **Phone:** (224) 622-5470
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Clinical Social Worker) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1174347850) · Data from the CMS NPPES public registry.