NPPES file of Aug 9, 2026

James Enrnest Siegler, MD

Neurology Physician · Chicago, IL

James Enrnest Siegler, MD is a neurology physician with a practice address in Chicago, Illinois, and NPI 1104265529, issued on Jun 19, 2013. Check the license (Illinois 036165146, 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
1104265529
Name
James Enrnest Siegler
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
036165146 IL
Self-reported in NPPES; status is on the state search
Practice location
5841 S Maryland Ave, Chicago, IL 60637
Phone
(773) 702-1000
Enumerated
Jun 19, 2013
Record last updated
Aug 7, 2024
Medicare enrollment
Enrolled (PECOS I20230925000107); accepts Medicare assignment
Medical or professional school
Tulane University School Of Medicine, 2013
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 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 James Enrnest Siegler 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 036165146
    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

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91% fewer Medicare Part D claims than the average neurology physician in 2024

129 Medicare Part D claims for 36 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. James Siegler129
  2. Specialty average1,370

Most prescribed

  1. Atorvastatin Calcium19 claims
  2. Gabapentin14 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.

Industry payments in 2024: $4,941.67

3 payments; by number, the most common kind was consulting fee; the largest payer was AstraZeneca Pharmaceuticals LP. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Siegler$4,941.67
  2. Specialty average$8,318.07

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

3 hospitals and group practices

  1. The University OF Chicago Medical CenterChicago, IL · Acute Care Hospitals4 of 5 stars
  2. Riverside Health SystemWillmington, IL
  3. University OF ChicagoHarvey, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

James Enrnest Siegler among 952 neurology physician records in Illinois

James Enrnest Siegler, MD is one of 952 neurology physician records with a practice address in Illinois. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 57% of them.

  • NPI issued2013 · 57% of these records are older, 41% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2013 · median 2006 among the 573 with a school on file
  • Record last updated2024 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Illinois

There are 952 neurology physician records in Illinois.

The 8 neurology physician records with the nearest ZIP codes

  1. Daniel AntonielloChicago, IL 606371790851467
  2. James BrorsonChicago, IL 606371831240811
  3. Fernando GoldenbergChicago, IL 606371386795367
  4. Christopher GomezChicago, IL 606371184658478
  5. Adil JavedChicago, IL 606371932142833
  6. Maria Kataki, M.D., PH.D.Chicago, IL 606371144304064
  7. Thomas KellyChicago, IL 606371003967084
  8. Carol MacmillanChicago, IL 606371306949615

Common questions

What is James Enrnest Siegler, MD's NPI number?

James Enrnest Siegler, MD's National Provider Identifier (NPI) is 1104265529, issued on Jun 19, 2013. An NPI identifies a provider in billing; it is not a license.

Where is James Enrnest Siegler, MD located?

The NPPES record lists a practice address at 5841 S Maryland Ave, Chicago, IL, 60637. Phone: (773) 702-1000. Providers update this record themselves, so call before visiting.

How can I verify James Enrnest Siegler, MD's license?

NPPES lists Illinois license number 036165146, 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 James Enrnest Siegler, MD prescribe under Medicare Part D?

In 2024, James Enrnest Siegler, MD had 129 Medicare Part D claims for 36 beneficiaries; the average among neurology physician prescribers was 1,370. 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.