CHRISTOPHER JOHN VERMILLION MD
NPI 1659638997
Emergency Medicine in Rockford, IL
About Christopher John Vermillion Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTOPHER JOHN VERMILLION MD (NPI 1659638997) is an individual emergency medicine provider in Rockford, Illinois, licensed in Ohio (35.125826) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Mercyhealth Hospital & Physician Clinic-crystal La, and maintains 12 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 12
Other Identifiers 2
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
Christopher John Vermillion 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
4Medicare enrollment records show Christopher Vermillion reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rockford, IL 61114
- Reassigned Medicare billing, Illinois enrollment
- 1,375 clinicians in this Medicare group
Harvard, IL 60033
- Reassigned Medicare billing, Illinois enrollment
- 382 clinicians in this Medicare group
Janesville, WI 53548
- Reassigned Medicare billing, Illinois and Wisconsin enrollments
- Also billed through NPI 1699728550 (Wisconsin)
- 671 clinicians in this Medicare group
Brunswick, ME 04011
- Reassigned Medicare billing, New Hampshire enrollment
- 41 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 5
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercyhealth Hospital & Physician Clinic-Crystal La
Acute Care Hospitals · Crystal Lake, ILMercy Harvard Hospital
Critical Access Hospitals · Harvard, ILMercy Health System Corp
Acute Care Hospitals · Janesville, WIMercy Walworth Hospital & Medical Center
Critical Access Hospitals · Lake Geneva, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 61114 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.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
ROCKFORD, IL 61114
ROCKFORD, IL 61114
ROCKFORD, IL 61114
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 Christopher Vermillion's NPI number?
The NPI number for Christopher Vermillion is 1659638997. It was assigned to this individual provider in the NPPES registry on April 11, 2012.
Where is Christopher Vermillion located?
Christopher Vermillion practices at 8201 E Riverside Blvd, Rockford, IL 61114. The listed phone number is (815) 971-7000.
What is Christopher Vermillion's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Christopher Vermillion enrolled in Medicare?
Yes. Christopher Vermillion 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 Christopher Vermillion's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Vermillion reassigns Medicare benefits to 4 organizations: Rockford Health Physicians (Rockford, IL), Mercy Harvard Hospital Inc (Harvard, IL), Mercy Health System Corporation (Janesville, WI) and Bluewater Emergency Partners Of Brunswick, LLC (Brunswick, ME). 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 Christopher Vermillion's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christopher Vermillion accept?
Health plans from CareSource and WellSense Health Plan list Christopher Vermillion 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 Christopher Vermillion affiliated with any hospitals?
According to CMS data, Christopher Vermillion is affiliated with Mercyhealth Hospital & Physician Clinic-Crystal La, Mercy Harvard Hospital, Mercy Health System Corp and Mercy Walworth Hospital & Medical Center.
When was this NPI record last updated?
The NPPES record for Christopher Vermillion was last updated on December 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.
# Christopher John Vermillion, MD · NPI 1659638997
Emergency Medicine physician in Rockford, Illinois. Individual provider, active in the CMS NPPES registry since April 11, 2012.
## Identity
- **NPI:** 1659638997 (Entity type: Individual)
- **Enumerated:** April 11, 2012
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 35.125826 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 8201 E RIVERSIDE BLVD, Rockford, IL 61114-2300
- **Phone:** (815) 971-7000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Rockford Health Physicians (NPI 1043242886, Rockford, IL); Mercy Harvard Hospital Inc (NPI 1427001445, Harvard, IL); Mercy Health System Corporation (NPI 1598718603, Janesville, WI); Bluewater Emergency Partners Of Brunswick, LLC (NPI 1043640204, Brunswick, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** December 19, 2024
- **Other identifiers:** Medicaid 0121463 (OH); Other H232330 (OH)
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Source: [NPI Profile](https://npiprofile.com/npi/1659638997) · Data from the CMS NPPES public registry.