NPPES file of Aug 9, 2026

Linda S. Chan, M.D.

Pulmonary Disease Physician · Winfield, IL

Linda S. Chan, M.D. is a pulmonary disease physician with a practice address in Winfield, Illinois, and NPI 1235187253, issued on May 4, 2006. Check the license (Illinois 036098848, as entered in NPPES) 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235187253
Name
Linda S. Chan
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
036098848 IL
Self-reported in NPPES; status is on the state search
Practice location
25 N Winfield RD Ste 204, Winfield, IL 60190
Phone
(630) 232-0202
Enumerated
May 4, 2006
Record last updated
Dec 18, 2025
Fax
(630) 690-2293
Medicaid ID
036098848 IL
Medicare enrollment
Enrolled (PECOS I20100917000713); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 1996
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 25 N Winfield RD Ste 204

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

  1. Nimra Alvi, MDPediatric Sleep Medicine Physician1336670868
  2. David Delapp, DOPulmonary Disease Physician1366860421
  3. Reeti Greenwald, MDSleep Medicine (Psychiatry & Neurology) Physician1649690827
  4. Amanda Law, APRN, CNPNurse Practitioner1558380634
  5. Steven Pearson, M.D.Pulmonary Disease Physician1144609256
  6. Mahwish Saim, M.D.Pulmonary Disease Physician1649767997

Verify Linda S. Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036098848
    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 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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22% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

1,118 Medicare Part D claims for 263 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 64% of claims.

  1. Linda Chan1,118
  2. Specialty average1,425

Most prescribed

  1. Albuterol Sulfate Hfa205 claims
  2. Breo Ellipta91 claims
  3. Omeprazole81 claims
  4. Trelegy Ellipta81 claims
  5. Montelukast Sodium77 claims
  6. Anoro Ellipta59 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.

The MIPS final score for 2023 (Medicare payment program): 94.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Central Dupage Physician GroupWinfield, IL

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

Linda S. Chan among 617 pulmonary disease physician records in Illinois

Linda S. Chan, M.D. is one of 617 pulmonary disease physician records with a practice address in Illinois. 85% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 54% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1996 · median 2005 among the 444 with a school on file
  • Record last updated2025 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 pulmonary disease physician records list a practice address in Winfield

They are 11 of the 778 NPPES records with a practice address in Winfield, and 617 pulmonary disease physician records in Illinois.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. David Delapp, DOWinfield, IL 601901366860421
  2. Andrew Korcek, MDWinfield, IL 601901588630495
  3. Linda Lam, DOWinfield, IL 601901700839354
  4. Timothy McGee, DOWinfield, IL 601901023061116
  5. Crystal Otteman, DOWinfield, IL 601901174578629
  6. Steven Pearson, M.D.Winfield, IL 601901144609256
  7. Mahwish Saim, M.D.Winfield, IL 601901649767997
  8. Benjamin Seides, MD, MPHWinfield, IL 601901770648073

Common questions

What is Linda S. Chan, M.D.'s NPI number?

Linda S. Chan, M.D.'s National Provider Identifier (NPI) is 1235187253, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Linda S. Chan, M.D. located?

The NPPES record lists a practice address at 25 N Winfield RD Ste 204, Winfield, IL, 60190. Phone: (630) 232-0202. Providers update this record themselves, so call before visiting.

How can I verify Linda S. Chan, M.D.'s license?

NPPES lists Illinois license number 036098848, as entered by the provider. 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 Linda S. Chan, M.D. prescribe under Medicare Part D?

In 2024, Linda S. Chan, M.D. had 1,118 Medicare Part D claims for 263 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.

What is Linda S. Chan, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.