DR. JOHN MICHAEL CAHILL M.D.
NPI 1063533875
Internal Medicine - Cardiovascular Disease in Greensboro, NC
About Dr. John Michael Cahill M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN MICHAEL CAHILL M.D. (NPI 1063533875) is an individual cardiovascular disease provider in Greensboro, North Carolina, licensed in North Carolina (2009-00535) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with Arnot Ogden Medical Center, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Other Identifiers 3
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
Dr. John Michael Cahill M.d. 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 Reassignments
4Medicare enrollment records show John Cahill reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greensboro, NC 27407
- Reassigned Medicare billing, North Carolina enrollment
- 69 clinicians in this Medicare group
Elmira, NY 14905
- Reassigned Medicare billing, New York enrollment
- 122 clinicians in this Medicare group
Elmira, NY 14905
- Reassigned Medicare billing, New York enrollment
- 245 clinicians in this Medicare group
Bath, NY 14810
- Reassigned Medicare billing, New York enrollment
- 54 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.
Areas of Expertise CMS Part B claims 19
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Arnot Ogden Medical Center
Acute Care Hospitals · Elmira, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 27407 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREENSBORO, NC 27407
GREENSBORO, NC 27407
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 John Cahill's NPI number?
The NPI number for John Cahill is 1063533875. It was assigned to this individual provider in the NPPES registry on April 2, 2007.
Where is John Cahill located?
John Cahill practices at 3801 W Market St, Greensboro, NC 27407. The listed phone number is (336) 883-0029.
What is John Cahill's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is John Cahill enrolled in Medicare?
Yes. John Cahill 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 organizations bill Medicare for John Cahill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Cahill reassigns Medicare benefits to 4 organizations: Bethany Medical Center (Greensboro, NC), Arnot Medical Services PLLC (Elmira, NY), Arnot Ogden Medical Center (Elmira, NY) and Ira Davenport Memorial Hospital, Inc. (Bath, NY). 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 John Cahill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Cahill affiliated with any hospitals?
According to CMS data, John Cahill is affiliated with Arnot Ogden Medical Center.
When was this NPI record last updated?
The NPPES record for John Cahill was last updated on July 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.