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

Dr. Andrew Jay Dennis, DO

Individual provider Trauma Surgery Physician · NPI 1194842005

Dr. Andrew Jay Dennis, DO is a General Surgery in Chicago, Illinois. Qualified in 1997, 29 years ago. Practices with Cook County, a 787-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
29
Licensed in
IL
In the registry since
2007
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

1901 W Harrison St
Chicago, IL 60612-3714
Phone: (312) 864-2730
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 036-103279 (IL)
Trauma Surgery Physician Taxonomy 2086S0127X · Licence 036-103297 (IL)
Surgical Critical Care Physician Taxonomy 2086S0102X · Licence 036-103279 (IL)

Record details

NPI number1194842005
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 23, 2007
Last updated in NPPESApril 22, 2021
Certification dateApril 22, 2021
Mailing address1900 W Polk St, Rm 1300, Chicago, IL 60612-3723

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Cook County — 787 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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