KARINA NIETO MD
NPI 1861883795
Radiology - Radiation Oncology in Jacksonville, FL
About Karina Nieto Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KARINA NIETO MD (NPI 1861883795) is an individual radiation oncology provider in Jacksonville, Florida, licensed in Florida (ME173075) and active in the NPI registry since February 2015. She is enrolled in Medicare PECOS, is affiliated with Mayo Clinic, and maintains a secondary practice location in Cleveland.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
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
Karina Nieto Md 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
2Medicare enrollment records show Karina Nieto reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Jacksonville, FL 32224
- Reassigned Medicare billing, Florida enrollment
- 1,828 clinicians in this Medicare group
Cleveland, OH 44106
- Reassigned Medicare billing, Ohio enrollment
- 3,958 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 12
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.
Mayo Clinic
Acute Care Hospitals · Jacksonville, FLPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 32224 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
JACKSONVILLE, FL 32224
JACKSONVILLE, FL 32224
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 Karina Nieto's NPI number?
The NPI number for Karina Nieto is 1861883795. It was assigned to this individual provider in the NPPES registry on February 13, 2015.
Where is Karina Nieto located?
Karina Nieto practices at 4500 San Pablo Rd S, Jacksonville, FL 32224. The listed phone number is (904) 953-2000.
What is Karina Nieto's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Karina Nieto enrolled in Medicare?
Yes. Karina Nieto 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 Karina Nieto's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karina Nieto reassigns Medicare benefits to 2 organizations: Mayo Clinic Jacksonville (Jacksonville, FL) and University Hospitals Medical Group Inc (Cleveland, OH). 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 Karina Nieto's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karina Nieto accept?
Health plans from Anthem Blue Cross and Blue Shield, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Karina Nieto as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Karina Nieto affiliated with any hospitals?
According to CMS data, Karina Nieto is affiliated with Mayo Clinic.
When was this NPI record last updated?
The NPPES record for Karina Nieto was last updated on July 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.