DENNIS MICHAEL MAHAN M.D.
NPI 1477550473
Family Medicine in Oxford, NC
About Dennis Michael Mahan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS MICHAEL MAHAN M.D. (NPI 1477550473) is an individual family medicine provider in Oxford, North Carolina, licensed in North Carolina (25053) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dennis Michael Mahan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Dennis Mahan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Oxford, NC 27565
- Reassigned Medicare billing, North Carolina enrollment
- 91 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 27565 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OXFORD, NC 27565
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 Dennis Mahan's NPI number?
The NPI number for Dennis Mahan is 1477550473. It was assigned to this individual provider in the NPPES registry on July 5, 2005.
Where is Dennis Mahan located?
Dennis Mahan practices at 1032 College St, Oxford, NC 27565. The listed phone number is (919) 693-6541.
What is Dennis Mahan's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Dennis Mahan enrolled in Medicare?
Yes. Dennis Mahan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Dennis Mahan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Mahan reassigns Medicare benefits to Granville Health System (Oxford, NC). 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 Dennis Mahan'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 Dennis Mahan was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.