JILAINE M. BOLEK BERQUIST M.D.
NPI 1346208766
Internal Medicine - Rheumatology in Madison, WI
About Jilaine M. Bolek Berquist M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JILAINE M. BOLEK BERQUIST M.D. (NPI 1346208766) is an individual rheumatology provider in Madison, Wisconsin, licensed in Wisconsin (48867-20) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Ssm Health St Clare Hospital - Baraboo, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2004).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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
Jilaine M. Bolek Berquist 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 Jilaine Bolek Berquist reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Madison, WI 53715
- Reassigned Medicare billing, Wisconsin enrollment
- 1,377 clinicians in this Medicare group
Janesville, WI 53548
- Reassigned Medicare billing, Wisconsin enrollment
- 1,155 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 13
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.
Ssm Health St Clare Hospital - Baraboo
Acute Care Hospitals · Baraboo, WISsm Health St Mary's Hospital - Madison
Acute Care Hospitals · Madison, WISsm Health St Mary's Hospital - Janesville
Acute Care Hospitals · Janesville, WIEdgerton Hospital And Health Services
Critical Access Hospitals · Edgerton, WIStoughton Hospital
Critical Access Hospitals · Stoughton, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53716 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
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 Jilaine Bolek Berquist's NPI number?
The NPI number for Jilaine Bolek Berquist is 1346208766. It was assigned to this individual provider in the NPPES registry on May 3, 2006.
Where is Jilaine Bolek Berquist located?
Jilaine Bolek Berquist practices at 1821 S Stoughton Rd, Madison, WI 53716. The listed phone number is (608) 260-6000.
What is Jilaine Bolek Berquist's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Jilaine Bolek Berquist enrolled in Medicare?
Yes. Jilaine Bolek Berquist 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 Jilaine Bolek Berquist's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jilaine Bolek Berquist reassigns Medicare benefits to 2 organizations: Dean Health Systems, Inc (Madison, WI) 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 Jilaine Bolek Berquist's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jilaine Bolek Berquist accept?
Health plans from Anthem Blue Cross and Blue Shield and Dean Health Plan list Jilaine Bolek Berquist 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 Jilaine Bolek Berquist affiliated with any hospitals?
According to CMS data, Jilaine Bolek Berquist is affiliated with Ssm Health St Clare Hospital - Baraboo, Ssm Health St Mary's Hospital - Madison, Ssm Health St Mary's Hospital - Janesville, Edgerton Hospital And Health Services and Stoughton Hospital.
When was this NPI record last updated?
The NPPES record for Jilaine Bolek Berquist was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.