NPPES file of Aug 9, 2026

Gregory Fenton, M.D.

Neurology Physician · Chicago, IL

Gregory Fenton, M.D. is a neurology physician with a practice address in Chicago, Illinois, and NPI 1295115079, issued on Jun 5, 2015. Check the license (Illinois 03614967, 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
1295115079
Name
Gregory Fenton
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
03614967 IL
125066583 IL
Self-reported in NPPES; status is on the state search
Practice location
1653 W Congress Pkwy, Chicago, IL 60612
Phone
(312) 942-5000
Enumerated
Jun 5, 2015
Record last updated
Mar 24, 2022
Medicare enrollment
Enrolled (PECOS I20200917002718); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 2015
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 1653 W Congress Pkwy

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

  1. Raid Abdulla, MDPediatric Cardiology Physician1710037742
  2. Pooja AgarwalPsychiatry Physician1407411689
  3. Heidi Aguilar, CRNACertified Registered Nurse Anesthetist1043703796
  4. Jenny AhnEmergency Registered Nurse1124836622
  5. Marwah Al Tekreeti, MDAnatomic Pathology & Clinical Pathology Physician1891539268
  6. Laila Abdulla Al-Harthy, RNRegistered Nurse1619832722

Verify Gregory Fenton 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 03614967
    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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56% fewer Medicare Part D claims than the average neurology physician in 2024

598 Medicare Part D claims for 111 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Gregory Fenton598
  2. Specialty average1,370

Most prescribed

  1. Gabapentin90 claims
  2. Memantine Hcl71 claims
  3. Emgality Pen65 claims
  4. Aimovig Autoinjector50 claims
  5. Donepezil Hcl36 claims
  6. Levetiracetam36 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. Rush University Medical GroupChicago, IL

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

Gregory Fenton among 952 neurology physician records in Illinois

Gregory Fenton, M.D. 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 2015, is newer than 62% of them.

  • NPI issued2015 · 62% of these records are older, 34% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2015 · median 2006 among the 573 with a school on file
  • Record last updated2022 · 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. Antoaneta Balabanov, MDChicago, IL 606121770578304
  2. Joshua Baron, MDChicago, IL 606121336112523
  3. Donna Bergen, MDChicago, IL 606121548256357
  4. Michael Carrithers, MDChicago, IL 606121073595427
  5. Cynthia Comella, MDChicago, IL 606121588640940
  6. Jacob Fox, MDChicago, IL 606121841242716
  7. Christopher Goetz, MDChicago, IL 606121124004585
  8. Michael Kelly, MDChicago, IL 606121558329086

Common questions

What is Gregory Fenton, M.D.'s NPI number?

Gregory Fenton, M.D.'s National Provider Identifier (NPI) is 1295115079, issued on Jun 5, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Fenton, M.D. located?

The NPPES record lists a practice address at 1653 W Congress Pkwy, Chicago, IL, 60612. Phone: (312) 942-5000. Providers update this record themselves, so call before visiting.

How can I verify Gregory Fenton, M.D.'s license?

NPPES lists Illinois license number 03614967, 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 Gregory Fenton, M.D. prescribe under Medicare Part D?

In 2024, Gregory Fenton, M.D. had 598 Medicare Part D claims for 111 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.