NPPES file of Aug 9, 2026

Nayson Luis Fernandes, MD, MS

Neurology Physician · Chicago, IL

Nayson Luis Fernandes, MD, MS is a neurology physician with a practice address in Chicago, Illinois, and NPI 1649809484, issued on Apr 3, 2020. 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649809484
Name
Nayson Luis Fernandes
Credential
MD, MS
Primary taxonomy
Neurology Physician 2084N0400X
License number
A206570 CA
Self-reported in NPPES; status is on the state search
Practice location
1740 W Taylor St, Chicago, IL 60612
Phone
(866) 600-2273
Enumerated
Apr 3, 2020
Record last updated
Jun 2, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1740 W Taylor St

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

  1. Francisco AbancoCertified Registered Nurse Anesthetist1255844288
  2. Leena Abbas, MDStudent in an Organized Health Care Education/Training Program1679376594
  3. Herand AbcarianColon & Rectal Surgery Physician1881792372
  4. Ivy AbrahamHematology & Oncology Physician1497172845
  5. Rohit Abraham, MD, MPH, MATPsychiatry Physician1013478932
  6. Ereni Abuaita, DOInternal Medicine Physician1013710961

Verify Nayson Luis Fernandes 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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95% fewer Medicare Part D claims than the average neurology physician in 2024

75 Medicare Part D claims for 17 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Nayson Fernandes75
  2. Specialty average1,370

Most prescribed

  1. Amitriptyline Hcl11 claims
  2. Duloxetine Hcl11 claims
  3. Levetiracetam11 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.

Nayson Luis Fernandes among 952 neurology physician records in Illinois

Nayson Luis Fernandes, MD, MS 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 2020, is newer than 78% of them.

  • NPI issued2020 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2026 · 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 Nayson Luis Fernandes, MD, MS's NPI number?

Nayson Luis Fernandes, MD, MS's National Provider Identifier (NPI) is 1649809484, issued on Apr 3, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Nayson Luis Fernandes, MD, MS located?

The NPPES record lists a practice address at 1740 W Taylor St, Chicago, IL, 60612. Phone: (866) 600-2273. Providers update this record themselves, so call before visiting.

How can I verify Nayson Luis Fernandes, MD, MS'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.

How much does Nayson Luis Fernandes, MD, MS prescribe under Medicare Part D?

In 2024, Nayson Luis Fernandes, MD, MS had 75 Medicare Part D claims for 17 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.