MAYO CLINIC
NPI 1114343860
Internal Medicine - Infectious Disease in Rochester, MN
About Mayo Clinic NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAYO CLINIC (NPI 1114343860) is a healthcare organization registered as an infectious disease in Rochester, Minnesota and active in the NPI registry since March 2014. The organization lists Dennis Dahlen, Chief Financial Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mayo Clinic is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
6,524Medicare enrollment records show 6,524 clinicians reassign Medicare billing to Mayo Clinic, which bills Medicare for the services they deliver. Of these, 4,483 practice at this address and 5,424 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 83
Nearest to this location (20)
See all 6,524Source: 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 Mayo Clinic's NPI number?
The NPI number for Mayo Clinic is 1114343860. It was assigned to this organization in the NPPES registry on March 5, 2014.
Where is Mayo Clinic located?
Mayo Clinic is located at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.
What is Mayo Clinic's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Mayo Clinic enrolled in Medicare?
Yes. Mayo Clinic is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mayo Clinic?
According to the CMS Revalidation Reassignment List (October 2026 release), 6,524 clinicians in 83 Medicare specialties reassign their Medicare billing to Mayo Clinic. 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. The largest specialties are Nurse Practitioner (882), Certified Registered Nurse Anesthetist (CRNA) (407) and Internal Medicine (357). Of these, 4,483 practice at this address and 5,424 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mayo Clinic was last updated on April 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Mayo Clinic · NPI 1114343860
Infectious Disease organization in Rochester, Minnesota. Organization record, active in the CMS NPPES registry since March 5, 2014.
## Identity
- **NPI:** 1114343860 (Entity type: Organization)
- **Enumerated:** March 5, 2014
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **Organization subpart:** No
- **Authorized official:** Dennis Dahlen, CHIEF FINANCIAL OFFICER
## Practice location
- **Address:** 200 1ST ST SW, Rochester, MN 55905-0001
- **Phone:** (507) 284-2511
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 6,524 clinicians in 83 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (882), Certified Registered Nurse Anesthetist (CRNA) (407), Internal Medicine (357); 4,483 practice at this address and 5,424 within 10 miles; [full list](https://npiprofile.com/npi/1114343860/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 12, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1114343860) · Data from the CMS NPPES public registry.