Jilaine M. Bolek Berquist, M.D.
Rheumatology Physician · Madison, WI
Jilaine M. Bolek Berquist, M.D. is a rheumatology physician with a practice address in Madison, Wisconsin, and NPI 1346208766, issued on May 3, 2006. Check the license (Wisconsin 48867-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jilaine M. Bolek Berquist
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- 48867-20 WI
48867 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1821 S Stoughton RD, Madison, WI 53716
- Phone
- (608) 260-6000
- Enumerated
- May 3, 2006
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (608) 260-6855
- Medicaid ID
- 1346208766 WI
- Medicare enrollment
- Enrolled (PECOS I20070607000382); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 154 in Wisconsin → Look up another NPI →
Also registered at 1821 S Stoughton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Alt, MDInternal Medicine Physician1578500872
- Darcey Amundson, PA-CPhysician Assistant1588691398
- Richard Armstrong, MDInternal Medicine Physician1689774523
- Wendy Arrington, O.D.Optometrist1750394334
- Bhawani Ballamudi, M.D.Psychiatry Physician1831148691
- Zachary Barber, PTPhysical Therapist1609054212
Verify Jilaine M. Bolek Berquist in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 48867-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% more Medicare Part D claims than the average rheumatology physician in 2024
2,015 Medicare Part D claims for 304 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 80 claims were for opioids.
Most prescribed
- Hydroxychloroquine Sulfate355 claims
- Methotrexate347 claims
- Prednisone334 claims
- Alendronate Sodium144 claims
- Leflunomide80 claims
- Humira(Cf) Pen62 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Dean Health Systems IncEvansville, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jilaine M. Bolek Berquist among 154 rheumatology physician records in Wisconsin
Jilaine M. Bolek Berquist, M.D. is one of 154 rheumatology physician records with a practice address in Wisconsin. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 48% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2004 · median 2004 among the 97 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Wisconsin
There are 154 rheumatology physician records in Wisconsin.
All 154 in Wisconsin → Every provider in Madison → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Jenna McGoldrick, M.D.Madison, WI 537161821415894
- Ilias Oikonomopoulos, M.D.Madison, WI 537161639334832
- Zachary Pruhs, M.D.Madison, WI 537161760537641
- Steven Szlembarski, DOMadison, WI 537161760011928
- Nguyet-Anh Tran, MDMadison, WI 537161447442355
- Jon Arnason, MDMadison, WI 537171265760433
- Christie Bartels, M.D.Madison, WI 537171093770422
- Carolyn Bell, MDMadison, WI 537171609843226
Common questions
What is Jilaine M. Bolek Berquist, M.D.'s NPI number?
Jilaine M. Bolek Berquist, M.D.'s National Provider Identifier (NPI) is 1346208766, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jilaine M. Bolek Berquist, M.D. located?
The NPPES record lists a practice address at 1821 S Stoughton RD, Madison, WI, 53716. Phone: (608) 260-6000. Providers update this record themselves, so call before visiting.
How can I verify Jilaine M. Bolek Berquist, M.D.'s license?
NPPES lists Wisconsin license number 48867-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jilaine M. Bolek Berquist, M.D. prescribe under Medicare Part D?
In 2024, Jilaine M. Bolek Berquist, M.D. had 2,015 Medicare Part D claims for 304 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.