MARK SUNUNG KHIL M.D.
NPI 1851398598
Radiology - Radiation Oncology in Quincy, IL
About Mark Sunung Khil M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK SUNUNG KHIL M.D. (NPI 1851398598) is an individual radiation oncology provider in Quincy, Illinois, licensed in Illinois (036105011) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Blessing Hospital, and is a graduate of Other (1978).
NPPES Registry Identity
Specialties & Licenses
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
Mark Sunung Khil 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
2Medicare enrollment records show Mark Khil reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Quincy, IL 62301
- Reassigned Medicare billing, Illinois enrollment
- 363 clinicians in this Medicare group
Rockford, IL 61103
- Reassigned Medicare billing, Illinois enrollment
- 1,375 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Blessing Hospital
Acute Care Hospitals · Quincy, ILJavon Bea Hospital
Acute Care Hospitals · Rockford, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62301 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
QUINCY, IL 62301
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 Mark Khil's NPI number?
The NPI number for Mark Khil is 1851398598. It was assigned to this individual provider in the NPPES registry on July 7, 2005.
Where is Mark Khil located?
Mark Khil practices at 1005 Broadway St, Quincy, IL 62301. The listed phone number is (217) 223-1200.
What is Mark Khil's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Mark Khil enrolled in Medicare?
Yes. Mark Khil 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 Mark Khil's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Khil reassigns Medicare benefits to 2 organizations: Blessing Hospital (Quincy, IL) and Rockford Health Physicians (Rockford, IL). 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 Mark Khil's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Khil accept?
Health plans from Anthem Blue Cross and Blue Shield, MercyCare and MercyCare Health Plans list Mark Khil 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 Mark Khil affiliated with any hospitals?
According to CMS data, Mark Khil is affiliated with Blessing Hospital and Javon Bea Hospital.
When was this NPI record last updated?
The NPPES record for Mark Khil was last updated on October 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 days 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.