NPPES file of Aug 9, 2026

Bryan R. Gaynor, D.O

Hospitalist Physician · Aurora, IL

Bryan R. Gaynor, D.O is a hospitalist physician with a practice address in Aurora, Illinois, and NPI 1942543558, issued on Apr 2, 2013. Check the license (Illinois 036139536, 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
1942543558
Name
Bryan R. Gaynor
Credential
D.O
Primary taxonomy
Hospitalist Physician 208M00000X
License numbers
036139536 IL
125.063439 IL
Self-reported in NPPES; status is on the state search
Practice location
1221 N Highland Ave, Aurora, IL 60506
Phone
(630) 859-8700
Enumerated
Apr 2, 2013
Record last updated
Nov 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160928000136); accepts Medicare assignment
Medical or professional school
Midwestern University, Chicago College Of Osteopathic Med, 2013
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 1221 N Highland Ave

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

  1. Lawrence Alberti, MDPulmonary Disease Physician1720015431
  2. Rovena AliajNurse Practitioner1871333120
  3. Seth Alper, M.D.Diagnostic Radiology Physician1689993768
  4. Mahmoud Amarna, MDPulmonary Disease Physician1538321518
  5. Jeffrey Anderson, PTPhysical Therapist1578598512
  6. Deborah Andras, PTPhysical Therapist1336246743

Verify Bryan R. Gaynor 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 036139536
    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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60% fewer Medicare Part D claims than the average hospitalist physician in 2024

208 Medicare Part D claims for 117 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 18 claims were for opioids.

  1. Bryan Gaynor208
  2. Specialty average521

Most prescribed

  1. Hydrocodone-Acetaminophen15 claims
  2. Cephalexin13 claims
  3. Eliquis11 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. Central Dupage Physician GroupGeneva, IL

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

Bryan R. Gaynor among 1,535 hospitalist physician records in Illinois

Bryan R. Gaynor, D.O is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% 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 43% of them.

  • NPI issued2013 · 43% of these records are older, 52% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated2013 · median 2013 among the 1,339 with a school on file
  • Record last updated2021 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Illinois

There are 1,535 hospitalist physician records in Illinois.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Marlene Henze, MDAurora, IL 605061154495786
  2. Anne Kinn, DOAurora, IL 605061053336073
  3. Ayeza Mohsin, D.O.Aurora, IL 605061619235264
  4. Neha Morker, DOAurora, IL 605061265698781
  5. Ryoko NoguchiAurora, IL 605061669720694
  6. Olatokunbo Shobande, M.D.Aurora, IL 605061972711513
  7. Brenda Fann, MDAurora, IL 605041356442347
  8. Navneesh Sharma, M.DAurora, IL 605041922319805

Common questions

What is Bryan R. Gaynor, D.O's NPI number?

Bryan R. Gaynor, D.O's National Provider Identifier (NPI) is 1942543558, issued on Apr 2, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Bryan R. Gaynor, D.O located?

The NPPES record lists a practice address at 1221 N Highland Ave, Aurora, IL, 60506. Phone: (630) 859-8700. Providers update this record themselves, so call before visiting.

How can I verify Bryan R. Gaynor, D.O's license?

NPPES lists Illinois license number 036139536, 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 Bryan R. Gaynor, D.O prescribe under Medicare Part D?

In 2024, Bryan R. Gaynor, D.O had 208 Medicare Part D claims for 117 beneficiaries; the average among hospitalist physician prescribers was 521. 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.