Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Brian O'Byrne

Individual provider Internal Medicine Physician · NPI 1760923056

Brian O'Byrne is an Internal Medicine in Elgin, Illinois. Graduated from Saint Louis University School of Medicine in 2017, 9 years ago. Practices with Advocate Health and Hospitals Corporation, a 3,079-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
9
Trained at
Saint Louis University School of Medicine
Licensed in
IL
In the registry since
2017
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Practice location Address checks out

1425 N Randall Rd # 2-1200
Elgin, IL 60123-2300
Phone: (224) 783-2525
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036152045 (IL)

Record details

NPI number1760923056
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 20, 2017
Last updated in NPPESMarch 7, 2023
Certification dateApril 29, 2022
Mailing address29373 Network Pl, Chicago, IL 60673-1293

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice Advocate Health And Hospitals Corporation — 3079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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