DR. BIBIANO RONQUILLO MD
NPI 1285791228
Internal Medicine in Woodstock, IL
About Dr. Bibiano Ronquillo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BIBIANO RONQUILLO MD (NPI 1285791228) is an individual internal medicine provider in Woodstock, Illinois and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and is a graduate of Other (1988).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Dr. Bibiano Ronquillo 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 Bibiano Ronquillo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Harvard, IL 60033
- Reassigned Medicare billing, Illinois enrollment
- 382 clinicians in this Medicare group
Janesville, WI 53548
- Reassigned Medicare billing, Illinois enrollment
- 671 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 9
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Medicine Mchenry
Acute Care Hospitals · Mchenry, ILMercyhealth 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 60098 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Bibiano Ronquillo's NPI number?
The NPI number for Bibiano Ronquillo is 1285791228. It was assigned to this individual provider in the NPPES registry on January 2, 2007.
Where is Bibiano Ronquillo located?
Bibiano Ronquillo practices at 2000 Lake Ave, Woodstock, IL 60098. The listed phone number is (815) 337-7100.
What is Bibiano Ronquillo's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Bibiano Ronquillo enrolled in Medicare?
Yes. Bibiano Ronquillo 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 Bibiano Ronquillo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Bibiano Ronquillo reassigns Medicare benefits to 2 organizations: Mercy Harvard Hospital Inc (Harvard, IL) and Mercy Health System Corporation (Janesville, WI). 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 Bibiano Ronquillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Bibiano Ronquillo accept?
Health plans from Anthem Blue Cross and Blue Shield and MercyCare Health Plans list Bibiano Ronquillo 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 Bibiano Ronquillo affiliated with any hospitals?
According to CMS data, Bibiano Ronquillo is affiliated with Northwestern Medicine Mchenry, 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 Bibiano Ronquillo was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Dr. Bibiano Ronquillo, MD · NPI 1285791228
Internal Medicine physician in Woodstock, Illinois. Individual provider, active in the CMS NPPES registry since January 2, 2007.
## Identity
- **NPI:** 1285791228 (Entity type: Individual)
- **Enumerated:** January 2, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Sole proprietor:** No
## Practice location
- **Address:** 2000 LAKE AVE, Woodstock, IL 60098-7401
- **Phone:** (815) 337-7100
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Mercy Harvard Hospital Inc (NPI 1427001445, Harvard, IL); Mercy Health System Corporation (NPI 1598718603, Janesville, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1988
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN G16737; Medicare ID-Type Unspecified 214660 L65419 (IL); Medicaid 036092013 1 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1285791228) · Data from the CMS NPPES public registry.