SEAN MICHAEL O'NEILL M.D.
NPI 1114239001
Radiology - Diagnostic Radiology in Orlando, FL
About Sean Michael O'neill M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEAN MICHAEL O'NEILL M.D. (NPI 1114239001) is an individual diagnostic radiology provider in Orlando, Florida, licensed in Florida (ME 117285) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS, is affiliated with Tallahassee Memorial Healthcare, and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (2010).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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
Sean Michael O'neill 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
6Medicare enrollment records show Sean O'neill reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orlando, FL 32806
- Reassigned Medicare billing, Florida enrollment
- 269 clinicians in this Medicare group
Orlando, FL 32806
- Reassigned Medicare billing, Florida enrollment
- 3,290 clinicians in this Medicare group
Perry, FL 32348
- Reassigned Medicare billing, Florida enrollment
- 654 clinicians in this Medicare group
Tallahassee, FL 32308
- Reassigned Medicare billing, Colorado enrollment
Tallahassee, FL 32308
- Reassigned Medicare billing, Colorado enrollment
Tallahassee, FL 32308
- Reassigned Medicare billing, Colorado enrollment
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 42
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Tallahassee Memorial Healthcare
Acute Care Hospitals · Tallahassee, FLHca Florida Capital Hospital
Acute Care Hospitals · Tallahassee, FLPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 32806 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 15
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 Sean O'neill's NPI number?
The NPI number for Sean O'neill is 1114239001. It was assigned to this individual provider in the NPPES registry on July 8, 2010.
Where is Sean O'neill located?
Sean O'neill practices at 20 W Kaley St, Orlando, FL 32806. The listed phone number is (407) 423-2581.
What is Sean O'neill's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Sean O'neill enrolled in Medicare?
Yes. Sean O'neill 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 Sean O'neill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sean O'neill reassigns Medicare benefits to 6 organizations: Ohri, LLC (Orlando, FL), Orlando Health Medical Group Inc (Orlando, FL), Tallahassee Memorial Healthcare Inc (Perry, FL), Radiology Associates Of Tallahassee PA (Tallahassee, FL), Southeast Radiology Partners Ltd (Tallahassee, FL) and 1 more organization, listed in the Medicare section above. 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 Sean O'neill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sean O'neill affiliated with any hospitals?
According to CMS data, Sean O'neill is affiliated with Tallahassee Memorial Healthcare and Hca Florida Capital Hospital.
When was this NPI record last updated?
The NPPES record for Sean O'neill was last updated on August 22, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.