NPPES file of Aug 9, 2026

Ling-Xin Chen, M.D.

Nephrology Physician · Chicago, IL

Ling-Xin Chen, M.D. is a nephrology physician with a practice address in Chicago, Illinois, and NPI 1962633438, issued on Aug 1, 2009. Check the license (Illinois 125055768, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962633438
Name
Ling-Xin Chen
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
125055768 IL
A142029 CA
Self-reported in NPPES; status is on the state search
Practice location
5841 S Maryland Ave, Chicago, IL 60637
Phone
(773) 702-1447
Enumerated
Aug 1, 2009
Record last updated
May 28, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160630002050); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 2009
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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8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →

Also registered at 5841 S Maryland Ave

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

  1. Ma. Theresa Abaring, CRNACertified Registered Nurse Anesthetist1962647586
  2. Rouzbeh AbbasgholizadehRetina Specialist (Ophthalmology) Physician1881510030
  3. Jehad Abdalla, MDSleep Medicine (Internal Medicine) Physician1053898684
  4. Sara Abdelaziz, MDEndocrinology, Diabetes & Metabolism Physician1598258089
  5. Noor Abdelrahman, PA-CPhysician Assistant1851012413
  6. Unknown Abdul Hanan, MDBlood Banking & Transfusion Medicine Physician1750022240

Verify Ling-Xin Chen 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 125055768    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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9% fewer Medicare Part D claims than the average nephrology physician in 2024

1,335 Medicare Part D claims for 176 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Ling-Xin Chen1,335
  2. Specialty average1,465

Most prescribed

  1. Cinacalcet Hcl123 claims
  2. Amlodipine Besylate108 claims
  3. Prednisone73 claims
  4. Metoprolol Tartrate69 claims
  5. Famotidine68 claims
  6. Atorvastatin Calcium55 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. Regents OF The Univ OF CASacramento, CA

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

Ling-Xin Chen among 572 nephrology physician records in Illinois

Ling-Xin Chen, M.D. is one of 572 nephrology physician records with a practice address in Illinois. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 64% of them.

  • NPI issued2009 · 64% of these records are older, 32% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2009 · median 2002 among the 433 with a school on file
  • Record last updated2020 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Illinois

There are 572 nephrology physician records in Illinois.

All 572 in Illinois → Every provider in Chicago → Nephrology Physician nationwide →

The 8 nephrology physician records with the nearest ZIP codes

  1. Arlene ChapmanChicago, IL 606371982614921
  2. Fredric CoeChicago, IL 606371609938158
  3. Beatrice Concepcion, M.D.Chicago, IL 606371518143551
  4. Patrick CunninghamChicago, IL 606371518033315
  5. Mary HammesChicago, IL 606371366505885
  6. Michelle JosephsonChicago, IL 606371184785917
  7. Benjamin Ko, M.D.Chicago, IL 606371619096583
  8. Jay Koyner, M.D.Chicago, IL 606371275656340

Common questions

What is Ling-Xin Chen, M.D.'s NPI number?

Ling-Xin Chen, M.D.'s National Provider Identifier (NPI) is 1962633438, issued on Aug 1, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Ling-Xin Chen, M.D. located?

The NPPES record lists a practice address at 5841 S Maryland Ave, Chicago, IL, 60637. Phone: (773) 702-1447. Providers update this record themselves, so call before visiting.

How can I verify Ling-Xin Chen, M.D.'s license?

NPPES lists Illinois license number 125055768, 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 Ling-Xin Chen, M.D. prescribe under Medicare Part D?

In 2024, Ling-Xin Chen, M.D. had 1,335 Medicare Part D claims for 176 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.