JOSEPH MICHAEL LEAHY D.O.
NPI 1770671604
Emergency Medicine in Nashua, NH
About Joseph Michael Leahy D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH MICHAEL LEAHY D.O. (NPI 1770671604) is an individual emergency medicine provider in Nashua, New Hampshire, licensed in New Hampshire (10161) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Southern Nh Medical Center, and is a graduate of University Of New England, College Of Osteo Medicine (1992).
NPPES Registry Identity
Specialties & Licenses
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
Joseph Michael Leahy D.o. 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 Joseph Leahy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Nashua, NH 03060
- Reassigned Medicare billing, New Hampshire enrollment
- 28 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Southern Nh Medical Center
Acute Care Hospitals · Nashua, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03060 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.
NASHUA, NH 03060
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 Joseph Leahy's NPI number?
The NPI number for Joseph Leahy is 1770671604. It was assigned to this individual provider in the NPPES registry on October 10, 2006.
Where is Joseph Leahy located?
Joseph Leahy practices at 8 Prospect St, Nashua, NH 03060. The listed phone number is (603) 577-2500.
What is Joseph Leahy's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Joseph Leahy enrolled in Medicare?
Yes. Joseph Leahy 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 Joseph Leahy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Leahy reassigns Medicare benefits to Southern New Hampshire Medical Center (Nashua, NH). 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 Joseph Leahy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Leahy accept?
Health plans from WellSense Health Plan list Joseph Leahy 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.
Is Joseph Leahy affiliated with any hospitals?
According to CMS data, Joseph Leahy is affiliated with Southern Nh Medical Center.
When was this NPI record last updated?
The NPPES record for Joseph Leahy was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Joseph Michael Leahy, D.O. · NPI 1770671604
Emergency Medicine physician in Nashua, New Hampshire. Individual provider, active in the CMS NPPES registry since October 10, 2006.
## Identity
- **NPI:** 1770671604 (Entity type: Individual)
- **Enumerated:** October 10, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 10161 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 8 PROSPECT ST, Nashua, NH 03060-3925
- **Phone:** (603) 577-2500
## 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:** Southern New Hampshire Medical Center (NPI 1598700940, Nashua, NH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New England, College Of Osteo Medicine, class of 1992
## Record status
- **NPPES last updated:** July 8, 2007
---
Source: [NPI Profile](https://npiprofile.com/npi/1770671604) · Data from the CMS NPPES public registry.