NPPES file of Aug 9, 2026

Chijen Lee Chen, M.D.

Hospitalist Physician · Janesville, WI

Chijen Lee Chen, M.D. is a hospitalist physician with a practice address in Janesville, Wisconsin, and NPI 1912589946, issued on Apr 28, 2021. Check the license (Wisconsin 83525-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912589946
Name
Chijen Lee Chen
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
83525-20 WI
Self-reported in NPPES; status is on the state search
Practice location
3400 E Racine St, Janesville, WI 53546
Phone
(608) 373-8000
Enumerated
Apr 28, 2021
Record last updated
Aug 21, 2024
Fax
(608) 373-8514
Medicaid ID
1912589946 WI
Medicare enrollment
Enrolled (PECOS I20240827001922); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3400 E Racine St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. David Bayley, M.D.Anesthesiology Physician1316918923
  2. Lawrence Beck, CRNACertified Registered Nurse Anesthetist1003872052
  3. Robert Bisenius, CRNACertified Registered Nurse Anesthetist1689923617
  4. Jennifer Canik, OTOccupational Therapist1033517677
  5. William Clanfield, MDHospitalist Physician1326085648
  6. Tracy Cotter, MDAnesthesiology Physician1447209572

Verify Chijen Lee Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 83525-20
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

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80% fewer Medicare Part D claims than the average hospitalist physician in 2024

106 Medicare Part D claims for 65 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Chijen Chen106
  2. Specialty average521

Most prescribed

  1. Cefprozil17 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

  1. Dean Health Systems IncJanesville, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Hospitalist Physician providers in Wisconsin

There are 894 hospitalist physician records in Wisconsin.

Other hospitalist physician records in Wisconsin

  1. Noormuhammad Abbasakoor, M.D.Sheboygan, WI1558645895
  2. Abubaker Abdalla, MDMilwaukee, WI1194187617
  3. Ihab Abdalrahman, MDMarshfield, WI1497855134
  4. Mohamed Fouzi Abdul Hameed, M.D.Weston, WI1255590899
  5. Hamza Abdul Majeed, DOMilwaukee, WI1881013282
  6. Vincent Abejuela, DOMilwaukee, WI1356928543
  7. Lolia Abibo, M.D.Milwaukee, WI1912359795
  8. Haisam Abid, MBBSMilwaukee, WI1578083184
  9. Islam Abo Al Nadie, MDMilwaukee, WI1326618786
  10. Zaid Abood, MDMilwaukee, WI1194254334

Common questions

What is Chijen Lee Chen, M.D.'s NPI number?

Chijen Lee Chen, M.D.'s National Provider Identifier (NPI) is 1912589946, issued on Apr 28, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Chijen Lee Chen, M.D. located?

The NPPES record lists a practice address at 3400 E Racine St, Janesville, WI, 53546. Phone: (608) 373-8000. Providers update this record themselves, so call before visiting.

How can I verify Chijen Lee Chen, M.D.'s license?

NPPES lists Wisconsin license number 83525-20, 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 Chijen Lee Chen, M.D. prescribe under Medicare Part D?

In 2024, Chijen Lee Chen, M.D. had 106 Medicare Part D claims for 65 beneficiaries; the average among hospitalist physician prescribers was 521. 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.