Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Justin Macmillan, DO

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1467080994

Dr. Justin Macmillan, DO practises Internal Medicine in Elgin, Illinois. Graduated from Midwestern University, Chicago College of Osteopathic Med in 2020, 6 years ago. Practices with Advocate Health and Hospitals Corporation, a 3,079-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
6
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
IL
In the registry since
2020
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Elgin, IL

No coordinates on file. Search this address in Google Maps

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036.162688 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Internal Medicine Physician Taxonomy 207R00000X · Licence 125.076402 (IL)

Record details

NPI number1467080994
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 30, 2020
Last updated in NPPESSeptember 8, 2023
Certification dateSeptember 8, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 2020 (6 years in practice)
Group practice Advocate Health And Hospitals Corporation — 3079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients315
Services billed 541 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Advocate Health and Hospitals Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3079 clinicians in the practice; 12 are shown here.

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