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

Dr. Dennis John Ryan, MD

Individual provider Emergency Medicine Physician · NPI 1083626378

Dr. Dennis John Ryan, MD is an Emergency Medicine Physician in Oak Lawn, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
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

4440 W 95th St
Oak Lawn, IL 60453-2600
Phone: (708) 684-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036113502 (IL)

Record details

NPI number1083626378
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 13, 2006
Last updated in NPPESJune 2, 2022
Certification dateJune 2, 2022
Mailing address29373 Network Pl, Chicago, IL 60673-1293

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