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

Dr. Guy M Dugan, MD

Individual provider Allergy & Immunology (Internal Medicine) Physician · NPI 1821041559

Dr. Guy M Dugan, MD is registered under Critical Care (Intensivists) in Elk Grove Village, Illinois. Graduated from Southern Methodist University Medical Department in 1984, 42 years ago. Practices with Alexian Brothers Medical Group Specialty Care, a 23-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
42
Trained at
Southern Methodist University Medical Department
Licensed in
IL
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

800 Biesterfield Rd ICU Dept
Elk Grove Village, IL 60007
Phone: (847) 437-5500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 036086010 (IL)
Allergy & Immunology (Internal Medicine) Physician Taxonomy 207RA0201X · Licence 036086010 (IL)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 036086010 (IL)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 036086010 (IL)

Record details

NPI number1821041559
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESMarch 5, 2025
Certification dateMarch 5, 2025

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesALLERGY/IMMUNOLOGY, PULMONARY DISEASE
Medical schoolSOUTHERN METHODIST UNIVERSITY MEDICAL DEPARTMENT
Graduated 1984 (42 years in practice)
Group practice Alexian Brothers Medical Group Specialty Care — 23 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients304
Services billed 812 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.

Colleagues at Alexian Brothers Medical Group Specialty Care

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 23 clinicians in the practice; 12 are shown here.

Other providers in Elk Grove Village