DR. MICHAEL H O'SHEA MD
NPI 1831189927
Internal Medicine - Nephrology in Keene, NH
About Dr. Michael H O'shea Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL H O'SHEA MD (NPI 1831189927) is an individual nephrology provider in Keene, New Hampshire, licensed in New Hampshire (20097) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in Springfield.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Michael H O'shea Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Michael O'shea reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, MA 01107
- Reassigned Medicare billing, Massachusetts enrollment
- 23 clinicians in this Medicare group
Hartford, CT 06105
- Reassigned Medicare billing, Connecticut enrollment
- 1,186 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 03431 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.
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 Michael O'shea's NPI number?
The NPI number for Michael O'shea is 1831189927. It was assigned to this individual provider in the NPPES registry on October 28, 2005.
Where is Michael O'shea located?
Michael O'shea practices at 590 Court St, Keene, NH 03431. The listed phone number is (603) 653-3830.
What is Michael O'shea's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Michael O'shea enrolled in Medicare?
Yes. Michael O'shea is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Michael O'shea's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael O'shea reassigns Medicare benefits to 2 organizations: Renal And Transplant Associates Of New England PC (Springfield, MA) and Trinity Health Of New England Provider Network Organization Inc (Hartford, CT). Each 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 Michael O'shea'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 Michael O'shea was last updated on December 2, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Dr. Michael H O'shea, MD · NPI 1831189927
Nephrology physician in Keene, New Hampshire. Individual provider, active in the CMS NPPES registry since October 28, 2005.
## Identity
- **NPI:** 1831189927 (Entity type: Individual)
- **Enumerated:** October 28, 2005
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 20097 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 590 COURT ST, Keene, NH 03431
- **Phone:** (603) 653-3830
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Renal And Transplant Associates Of New England PC (NPI 1235535204, Springfield, MA); Trinity Health Of New England Provider Network Organization Inc (NPI 1003882812, Hartford, CT) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 2, 2019
- **Other identifiers:** Medicaid 3106624 (MA); Medicaid 003089168 (CT)
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Source: [NPI Profile](https://npiprofile.com/npi/1831189927) · Data from the CMS NPPES public registry.