NPPES file of Aug 9, 2026

Amy Chao Ludwig, MD

Pulmonary Disease Physician · Chicago, IL

Amy Chao Ludwig, MD is a pulmonary disease physician with a practice address in Chicago, Illinois, and NPI 1942730833, issued on Jun 14, 2017. Check the license (Illinois 036.1555674, 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
1942730833
Name
Amy Chao Ludwig
Credential
MD
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
036.1555674 IL
Self-reported in NPPES; status is on the state search
Practice location
5140 N California Ave Ste 700, Chicago, IL 60625
Phone
(773) 989-1257
Enumerated
Jun 14, 2017
Record last updated
Jul 7, 2025
Fax
(847) 763-8915
Medicare enrollment
Enrolled (PECOS I20240628001643); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 2017
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 5140 N California Ave Ste 700

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

  1. Gerelmaa Budmandakh, APN-CNPNurse Practitioner1710510060
  2. Edith Gonzales, ANP-CNPNurse Practitioner1235675273
  3. Liora KupferNurse Practitioner1194694497
  4. Jess LeeNurse Practitioner1154112647
  5. Samer Najjar, M.D.Vascular Surgery Physician1346292547

Verify Amy Chao Ludwig 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 036.1555674
    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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96% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

60 Medicare Part D claims for 13 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. Amy Ludwig60
  2. Specialty average1,425

Most prescribed

  1. Furosemide12 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. Endeavor Health Medical GroupEvanston, IL

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

Pulmonary Disease Physician providers in Illinois

There are 617 pulmonary disease physician records in Illinois.

Other pulmonary disease physician records in Illinois

  1. Mazen Abdel-Hadi, M.D.Joliet, IL1356468672
  2. Omar Abdulfattah, MDSpringfield, IL1205259330
  3. Lauren Abplanalp, D.O.Chicago, IL1346604642
  4. Philip Abraham, M.D.Springfield, IL1548375629
  5. Raju Abraham, MDKankakee, IL1003830852
  6. Said Abuhasna, M.DElk Grove Village, IL1699187344
  7. Katherine Acosta, MDChicago, IL1215556279
  8. Craig Adams, MDPalos Park, IL1225019417
  9. Thomas Ade, MDMoline, IL1568448884
  10. Ayodeji AdegunsoyeChicago, IL1255645537

Common questions

What is Amy Chao Ludwig, MD's NPI number?

Amy Chao Ludwig, MD's National Provider Identifier (NPI) is 1942730833, issued on Jun 14, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Amy Chao Ludwig, MD located?

The NPPES record lists a practice address at 5140 N California Ave Ste 700, Chicago, IL, 60625. Phone: (773) 989-1257. Providers update this record themselves, so call before visiting.

How can I verify Amy Chao Ludwig, MD's license?

NPPES lists Illinois license number 036.1555674, 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 Amy Chao Ludwig, MD prescribe under Medicare Part D?

In 2024, Amy Chao Ludwig, MD had 60 Medicare Part D claims for 13 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.