NPPES file of Aug 9, 2026

Alexander Ethan Feller, M.D.

Anesthesiology Physician · Mokena, IL

Alexander Ethan Feller, M.D. is an anesthesiology physician with a practice address in Mokena, Illinois, and NPI 1871528778, issued on Jul 11, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871528778
Name
Alexander Ethan Feller
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
Practice location
19110 Darvin Dr, Mokena, IL 60448
Phone
(708) 478-8889
Enumerated
Jul 11, 2006
Record last updated
Nov 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050216000190); accepts Medicare assignment
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 19110 Darvin Dr

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

  1. Raymond Hines, PA-CPhysician Assistant1265524839
  2. Patrick Sweeney, MDOrthopaedic Surgery of the Spine Physician1144204504

Verify Alexander Ethan Feller 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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Bills Medicare through one group practice

  1. River Road Anesthesia Specialists LLCDes Plaines, IL

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

Alexander Ethan Feller among 2,575 anesthesiology physician records in Illinois

Alexander Ethan Feller, M.D. is one of 2,575 anesthesiology physician records with a practice address in Illinois. 71% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 61% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1992 · median 2006 among the 1,608 with a school on file
  • Record last updated2007 · 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 207L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in Illinois

There are 2,575 anesthesiology physician records in Illinois.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Ruslan Turcanu, MDMokena, IL 604481457500134
  2. Horner Chen, MDMorris, IL 604501144201518
  3. Timothy Sanders, DOMorris, IL 604501740232008
  4. Benedict Tanbonliong, MDMorris, IL 604501821049040
  5. Mihael Rosenbaum, MDNew Lenox, IL 604511730649377
  6. Ahmad Shoubaki, MDNew Lenox, IL 604511982192563
  7. Alex Stone, DONew Lenox, IL 604511437787173
  8. Scott Millington, M.D.Oak Forest, IL 604521649415449

Common questions

What is Alexander Ethan Feller, M.D.'s NPI number?

Alexander Ethan Feller, M.D.'s National Provider Identifier (NPI) is 1871528778, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Ethan Feller, M.D. located?

The NPPES record lists a practice address at 19110 Darvin Dr, Mokena, IL, 60448. Phone: (708) 478-8889. Providers update this record themselves, so call before visiting.

How can I verify Alexander Ethan Feller, M.D.'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.

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.