NPPES file of Aug 9, 2026

Joseph Liu

Family Medicine Physician · Normal, IL

Joseph Liu is a family medicine physician with a practice address in Normal, Illinois, and NPI 1669564738, issued on Sep 28, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; 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
1669564738
Name
Joseph Liu
Primary taxonomy
Family Medicine Physician 207Q00000X
Practice location
2200 Fort Jesse RD, Normal, IL 61761
Phone
(309) 661-6290
Enumerated
Sep 28, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(309) 451-1354
Medicare enrollment
Enrolled (PECOS I20041208000333); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 2200 Fort Jesse RD

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

  1. Katie Adams, OTD, OTR/LPhysical Medicine & Rehabilitation Physician1134338940
  2. Rachel Bauman, RDRegistered Dietitian1811323975
  3. Jennifer Berkley, APNFamily Nurse Practitioner1295088391
  4. Carlos Capati, M.D.Diagnostic Radiology Physician1043266018
  5. Lindsay ConnorNurse Practitioner1245688209
  6. William Cooley, M.D.Diagnostic Radiology Physician1972559912

Verify Joseph Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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 Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.0 times the Medicare Part D claims of the average family medicine physician in 2024

10,569 Medicare Part D claims for 880 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 365 claims were for opioids.

  1. Joseph Liu10,569
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium702 claims
  2. Lisinopril478 claims
  3. Levothyroxine Sodium454 claims
  4. Amlodipine Besylate426 claims
  5. Losartan Potassium366 claims
  6. Rosuvastatin Calcium323 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. Osf Multi-Specialty GroupNormal, IL

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

Joseph Liu among 6,215 family medicine physician records in Illinois

Joseph Liu is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2002 · median 2006 among the 3,714 with a school on file
  • Record last updated2007 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

32 family medicine physician records list a practice address in Normal

They are 32 of the 963 NPPES records with a practice address in Normal, and 6,215 family medicine physician records in Illinois.

The 8 family medicine physician records with the nearest ZIP codes

  1. Artur Djagarian, MDNormal, IL 617611598971137
  2. Marcia HauterNormal, IL 617611548288327
  3. Juliana Kaminski, D.O.Normal, IL 617611194747527
  4. Todd Kettering, D.O.Normal, IL 617611972619526
  5. Madhavi Madugula, M.D.Normal, IL 617611144266065
  6. Janine Maere, MDNormal, IL 617611891894622
  7. Lacie Petro, M.D.Normal, IL 617611619189859
  8. John Pollastrini, M.D.Normal, IL 617611033131479

Common questions

What is Joseph Liu's NPI number?

Joseph Liu's National Provider Identifier (NPI) is 1669564738, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Liu located?

The NPPES record lists a practice address at 2200 Fort Jesse RD, Normal, IL, 61761. Phone: (309) 661-6290. Providers update this record themselves, so call before visiting.

How can I verify Joseph Liu's license?

Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Joseph Liu prescribe under Medicare Part D?

In 2024, Joseph Liu had 10,569 Medicare Part D claims for 880 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.